Seiko Cal. 5646 - 742

This Spring Drive model from 1990 features a 38mm PVD Black case. It features a Green dial protected by a Sapphire crystal and offers 100m of water resistance. [seikata-wm-2549a559367a]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

38mm

Case Thickness

9.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Green

Jewels

27j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1990

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