Seiko Cal. 6637 - 711

This Hand-Winding model from 1991 features a 39mm Titanium case. It features a White dial protected by a Hardlex crystal and offers 60m of water resistance. [seikata-wm-7cafc186aa4b]

Also known as: Arnie

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

39mm

Case Thickness

13.0mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

60m

Dial Color

White

Jewels

36j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1991

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