Citizen Men's Eco-Drive Dress Classic Calendrier Watch (Model: BU2100-05E)

4.10 (4)
Best price today
$281.4
Save 0.10% vs RRP ▼ 0.27%
Best
amazon.com
4.10 (4)
In stock
$281.4
$281.69 -0.1%
Prices last updated Feb 08, 2026

Highlights

  • Eco-Drive movement eliminates battery changes for hassle-free use.
  • Water resistant up to 100 meters, perfect for swimming and snorkeling.
  • Stylish black leather strap with deployment clasp for a secure fit.
  • Sleek black dial with analog day-date display for easy readability.
  • Durable stainless steel case and bezel for added longevity.

Description

Elevate your style with the Citizen Men's Eco-Drive Dress Classic Calendrier Watch (Model: BU2100-05E). This sophisticated timepiece seamlessly combines elegance and functionality, making it the perfect accessory for any occasion. Crafted with a sleek black leather strap, this watch is designed for comfort and durability. The black dial features an analog display with a day-date calendar, ensuring you stay organized while looking stylish. With a case diameter of 44 millimeters and a thickness of 13.05 millimeters, this watch makes a bold statement on your wrist. The stainless steel case and bezel offer a refined finish, while the mineral crystal dial window protects against scratches. One of the standout features of this watch is its Eco-Drive movement, which harnesses light to power the watch, eliminating the need for battery replacements. Enjoy peace of mind with its impressive water resistance of up to 100 meters (10 ATM), making it suitable for swimming and snorkeling. Perfect for both formal and casual settings, the Citizen Eco-Drive Dress Classic Calendrier Watch is not only a timepiece but a testament to quality craftsmanship and innovative technology. Join the ranks of satisfied customers who have rated this watch 4.1 out of 5 stars, and experience the perfect blend of style and sustainability.

Specifications

Item Model Number BU2100-05E
Department Mens
Date First Available April 14, 2025
Manufacturer Citizen
Best Sellers Rank #5,260 in Men's Wrist Watches
Customer Reviews 4.1 4.1 out of 5 stars
Brand Or Seller Or Collection Name Citizen
Model Number BU2100-05E
Part Number BU2100-05E
Item Shape Round
Dial Window Material Type Mineral Crystal
Display Type Analog
Clasp Deployment Clasp with Push Buttons
Case Material Stainless Steel
Case Diameter 44 Millimeters
Case Thickness 13.05 millimeters
Band Material Leather
Band Size Mens Standard
Band Color Black
Dial Color Black
Bezel Material Stainless Steel
Bezel Function Stationary
Calendar Day-Date
Special Features Water Resistant
Item Weight 10.23 ounces
Movement Eco-Drive Movement
Water Resistance Depth 10 ATM, 100 meters, 330 feet
Warranty If this product is sold by Amazon, please review the manufacturer’s website for warranty information
Brand Citizen
Package Dimensions 4.92 x 3.94 x 3.11 inches; 10.23 ounces

Price history

Reviews

No user reviews yet. Write first.


Best Deals


Invicta Men's Pro Diver 46mm Stainless Steel Quartz Watch - Model 46901
Invicta
Invicta Men's Pro Diver 46mm Stainless Steel Quartz Watch - Model 46901
(4)
Stainless Steel | Mens
$29.99
Invicta Men's 0929 Anatomic Subaqua Watch
Invicta
Invicta Men's 0929 Anatomic Subaqua Watch
(10)
Plastic
$78.89
Discover the INVICTA Angel Lady 19.50mm Stainless Steel Watch
Invicta
Discover the INVICTA Angel Lady 19.50mm Stainless Steel Watch
(77)
Stainless Steel | Lady
$72 $24.99
Citizen Men's Eco-Drive Weekender Sport Casual, Black Stainless Steel Bracelet Watch, Chronograph
Citizen
Citizen Men's Eco-Drive Weekender Sport Casual, Black Stainless Steel Bracelet Watch, Chronograph
(139)
Stainless Steel | Mens
$550 $206.09
Invicta Men's 14875 Specialty Chronograph Black Textured Dial Stainless Steel Watch
Invicta
Invicta Men's 14875 Specialty Chronograph Black Textured Dial Stainless Steel Watch
(925)
Mens
$119.9 $39.99
INVICTA Wildflower Lady 32mm Stainless Steel Gold + Steel Black Dial PC21J Quartz
Invicta
INVICTA Wildflower Lady 32mm Stainless Steel Gold + Steel Black Dial PC21J Quartz
(6)
Stainless Steel | Lady
$29.99
Timex Women's TW2R36100 Metropolitan Skyline Gold-Tone Stainless Steel Mesh Bracelet Watch
Timex
Timex Women's TW2R36100 Metropolitan Skyline Gold-Tone Stainless Steel Mesh Bracelet Watch
(579)
Womens | Brass
$41.77
Invicta Pro Diver Men's Quartz Movement Stainless Steel Watch - 37229
Invicta
Invicta Pro Diver Men's Quartz Movement Stainless Steel Watch - 37229
(29)
Stainless Steel | Mens
$139.2 $102.2
Timex Men's Collegiate Gamer 42mm Watch – Washington Cougars
Timex
Timex Men's Collegiate Gamer 42mm Watch – Washington Cougars
(215)
Mens | Brass
$69.95 $64.95
Tissot Women's Chemin des Tourelles Powermatic 80 34 mm Automatic Watch
Tissot
Tissot Women's Chemin des Tourelles Powermatic 80 34 mm Automatic Watch
(2)
Stainless Steel | Womens
$850 $450
Invicta Women's 12527 Pro-Diver 18k Gold Ion-Plated Stainless Steel and Champagne Dial Bracelet Watch
Invicta
Invicta Women's 12527 Pro-Diver 18k Gold Ion-Plated Stainless Steel and Champagne Dial Bracelet Watch
(1847)
Stainless Steel | Womens
$34.99
Invicta Specialty Stainless Steel Men's Quartz Watch - 45mm, Silver/Blue
Invicta
Invicta Specialty Stainless Steel Men's Quartz Watch - 45mm, Silver/Blue
(69)
Stainless Steel | Mens
$108 $65.99
Timex Tribute Unisex Collegiate Recruit 38mm Watch - Virginia Tech Hokies
Timex
Timex Tribute Unisex Collegiate Recruit 38mm Watch - Virginia Tech Hokies
(209)
Resin | unisex-children
$89 $44.34
Timex Tribute Men's Collegiate Citation 42mm Watch – Ohio State Buckeyes
Timex
Timex Tribute Men's Collegiate Citation 42mm Watch – Ohio State Buckeyes
(387)
Brass
$135 $77.61
Invicta Pro Diver Men's 43mm Stainless Steel Watch - Model 47176
Invicta
Invicta Pro Diver Men's 43mm Stainless Steel Watch - Model 47176
(45)
Stainless Steel | Mens
$43.99
Invicta Men's Pro Diver Automatic Watch, 9010OB
Invicta
Invicta Men's Pro Diver Automatic Watch, 9010OB
(1171)
Mens
$188.7 $110.5
Casio Men's Quartz Sport Watch with Stainless Steel Strap - Model EFV620D-1A2V
Casio
Casio Men's Quartz Sport Watch with Stainless Steel Strap - Model EFV620D-1A2V
(548)
Stainless Steel
$120 $72
Invicta Men's 22785 Speedway Analog Display Quartz Black Watch
Invicta
Invicta Men's 22785 Speedway Analog Display Quartz Black Watch
(872)
Mens
$79.9
Casio G-Shock 8900-1: The Ultimate Durable and Stylish Timepiece
Casio
Casio G-Shock 8900-1: The Ultimate Durable and Stylish Timepiece
(44)
Resin | Mens
$135 $81
Casio Edifice Men's Quartz Date Indicator Sapphire Crystal Wrist Watch EFB-108D-7AV
Casio
Casio Edifice Men's Quartz Date Indicator Sapphire Crystal Wrist Watch EFB-108D-7AV
(356)
Resin
$150 $90
Best price $281.40
See offers