Seiko Cal. 4591 - 546

This Spring Drive model from 1975 features a 39mm Titanium case. It features a Black dial protected by a Acrylic crystal and offers 30m of water resistance. [seikata-wm-843aec0f2489]

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

39mm

Case Thickness

9.4mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Black

Jewels

20j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1975

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