Seiko Cal. 4596 - 645

The Seiko 4596-645 represents an important milestone in Seiko's 1974 lineup. The Coin-Edge bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-e4d49e2f94ad]

Also known as: Bullhead, Sportsmatic

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

36mm

Case Thickness

14.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Green

Jewels

28j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1974

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