Seiko Cal. 5687 - 931

Seiko 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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