Seiko Cal. 4591 - 612

This Hand-Winding model from 1968 features a 35mm PVD Black case. It features a Silver dial protected by a Mineral crystal and offers 180m of water resistance. [seikata-wm-d3bf32250e05]

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

35mm

Case Thickness

15.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Silver

Jewels

31j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1968

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