Seiko Cal. 6637 - 622

This Hand-Winding model from 1974 features a 36mm PVD Black case. It features a White dial protected by a Hardlex crystal and offers 160m of water resistance. [seikata-wm-36807e8cb154]

Also known as: Turtle

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

36mm

Case Thickness

8.5mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

White

Jewels

21j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1974

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