Seiko Cal. 5687 - 931

The 5687-931 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 5687 caliber with 30j jewels beating at 36,000 bph, it delivers a 58 hours power reserve. [seikata-wm-2a98dc0c38b7]

Also known as: Arnie

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

9.1mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Green

Jewels

30j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1987

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