Seiko Cal. 4591 - 532

The Seiko 4591-532 represents an important milestone in Seiko's 1968 lineup. It features a Green dial protected by a Sapphire crystal and offers 140m of water resistance. [seikata-wm-007c863c684d]

Also known as: Bullhead

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

10.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Green

Jewels

19j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1968

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