Seiko Cal. 5637 - 129

The Seiko 5637-129 represents an important milestone in Seiko's 1987 lineup. Powered by the 5637 caliber with 33j jewels beating at 28,800 bph, it delivers a 55 hours power reserve. [seikata-wm-94867e49e54e]

Also known as: Sumo, Emperor

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

12.6mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

80m

Dial Color

White

Jewels

33j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1987

Related Models

• Seiko 4431-555
• Seiko 0781-930
• Seiko 7172-797
• Seiko 6661-645
• Seiko 4549-160
• Seiko 6699-347
• Seiko 5268-488
• Seiko 7091-606
• Seiko 7136-438
• Seiko 0754-905
• Seiko 6120-984
• Seiko 6112-414