Seiko Cal. 5660 - 587

This Spring Drive model from 1996 features a 36mm Two-Tone case. Powered by the 5660 caliber with 24j jewels beating at 36,000 bph, it delivers a 57 hours power reserve. [seikata-wm-b1164c1efb1c]

Also known as: Bullhead, Rally

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

36mm

Case Thickness

9.6mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Silver

Jewels

24j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1996

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