Seiko Cal. 6637 - 262

The Seiko 6637-262 represents an important milestone in Seiko's 1977 lineup. It features a Black dial protected by a Acrylic crystal and offers 170m of water resistance. [seikata-wm-5195ee5492ad]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

15.7mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Black

Jewels

27j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1977

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