Seiko Cal. 4591 - 445

This Hand-Winding model from 1977 features a 39mm PVD Black case. The Coin-Edge bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-f9ab73da1b9c]

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

39mm

Case Thickness

9.7mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Cream

Jewels

31j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1977

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