Seiko Cal. 4587 - 931

The 4587-931 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Burgundy dial protected by a Sapphire crystal and offers 50m of water resistance. [seikata-wm-f2c28d664b59]

Also known as: Bullhead

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

36mm

Case Thickness

11.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

50m

Dial Color

Burgundy

Jewels

29j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1975

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