Seiko Cal. 6631 - 418

This Solar model from 1976 features a 41mm PVD Black case. It features a White dial protected by a Acrylic crystal and offers 90m of water resistance. [seikata-wm-06d604d53210]

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

41mm

Case Thickness

12.5mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

90m

Dial Color

White

Jewels

22j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1976

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