Seiko Cal. 5641 - 136

The Seiko 5641-136 represents an important milestone in Seiko's 1988 lineup. It features a Champagne dial protected by a Hardlex crystal and offers 140m of water resistance. [seikata-wm-ddc8802f713a]

Also known as: Sumo, Crown

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

9.6mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Champagne

Jewels

21j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1988

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