Seiko Cal. 6637 - 215

This Quartz model from 1991 features a 41mm Stainless Steel case. It features a Black dial protected by a Sapphire crystal and offers 100m of water resistance. [seikata-wm-b9c05d478493]

Also known as: Goldfeather

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

12.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Black

Jewels

31j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1991

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