Seiko Cal. 6643 - 122

This Hand-Winding model from 1991 features a 43mm PVD Black case. It features a Silver dial protected by a Hardlex crystal and offers 120m of water resistance. [seikata-wm-0d04c8d6400e]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

43mm

Case Thickness

9.9mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Silver

Jewels

35j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1991

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