Seiko Cal. 5643 - 378

This Quartz model from 1975 features a 40mm Gold-Plated case. It features a Black dial protected by a Mineral crystal and offers 200m of water resistance. [seikata-wm-c99b66232bab]

Also known as: Tuna

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

10.4mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Black

Jewels

29j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1975

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