Seiko Cal. 5642 - 678

This Quartz model from 1984 features a 41mm Titanium case. It features a Cream dial protected by a Mineral crystal and offers 90m of water resistance. [seikata-wm-89b36be1e581]

Also known as: Tuna, Helmet

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

41mm

Case Thickness

9.8mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Cream

Jewels

28j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1984

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