Seiko Cal. 5640 - 435

This Solar model from 1992 features a 41mm Hardlex-Coated Steel case. It features a Navy dial protected by a Mineral crystal and offers 100m of water resistance. [seikata-wm-7b507bdc5cfd]

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

12.4mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

100m

Dial Color

Navy

Jewels

22j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1992

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