Seiko Cal. 5646 - 899

This Spring Drive model from 1978 features a 44mm Hardlex-Coated Steel case. It features a Green dial protected by a Mineral crystal and offers 120m of water resistance. [seikata-wm-3172ea2280df]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

14.7mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Green

Jewels

32j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1978

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