Seiko Cal. 5644 - 615

This Spring Drive model from 1980 features a 46mm PVD Black case. It features a Black dial protected by a Hardlex crystal and offers 80m of water resistance. [seikata-wm-cf26f73c58a8]

Also known as: Samurai, UFO

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

46mm

Case Thickness

9.6mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Black

Jewels

21j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1980

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