Seiko Cal. 5643 - 877

The Seiko 5643-877 represents an important milestone in Seiko's 1997 lineup. Powered by the 5643 caliber with 22j jewels beating at 36,000 bph, it delivers a 71 hours power reserve. [seikata-wm-574e42d1fd4a]

Also known as: Sumo, World Timer

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

45mm

Case Thickness

10.7mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

90m

Dial Color

Silver

Jewels

22j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1997

Related Models

• Seiko 7083-540
• Seiko 3837-761
• Seiko 6699-386
• Seiko 6166-270
• Seiko 7025-633
• Seiko 6648-189
• Seiko 5632-961
• Seiko 3816-798
• Seiko 5615-898
• Seiko 6348-238
• Seiko 5615-302
• Seiko 7027-711