Seiko Cal. 6637 - 655

This Solar model from 1991 features a 42mm Hardlex-Coated Steel case. It features a Black dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-bdd38838dcb0]

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

12.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

30m

Dial Color

Black

Jewels

26j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1991

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