Seiko Cal. 6637 - 851

This Solar model from 1981 features a 39mm Two-Tone case. It features a White dial protected by a Sapphire crystal and offers 40m of water resistance. [seikata-wm-27c893c8b06c]

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

39mm

Case Thickness

14.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

White

Jewels

32j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1981

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