Seiko Cal. 6637 - 774

The Seiko 6637-774 represents an important milestone in Seiko's 1974 lineup. It features a White dial protected by a Hardlex crystal and offers 60m of water resistance. [seikata-wm-14f36c3ac842]

Also known as: Navigator

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

15.9mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

White

Jewels

17j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1974

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