Seiko Cal. 5637 - 488

This Solar model from 1990 features a 40mm PVD Black case. It features a Green dial protected by a Hardlex crystal and offers 110m of water resistance. [seikata-wm-b6305e44428e]

Also known as: Monster, Sportsmatic

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

40mm

Case Thickness

12.7mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Green

Jewels

17j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1990

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