Seiko Cal. 5646 - 647

This Hand-Winding model from 1981 features a 42mm PVD Black case. It features a Navy dial protected by a Hardlex crystal and offers 90m of water resistance. [seikata-wm-05cdca7b9a1c]

Also known as: Goldfeather

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

42mm

Case Thickness

10.3mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Navy

Jewels

25j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1981

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