Seiko Cal. 6131 - 899

Seiko 6131-899

The 6131-899 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6131 caliber with 32j jewels beating at 28,800 bph, it delivers a 38 hours power reserve. [seikata-wm-dead1df405ce]

Also known as: Sportsmatic, Crown

Specifications

Movement
Kinetic
Case Material
Stainless Steel
Case Width
38mm
Case Thickness
14.3mm
Lug Width
21mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
50m
Dial Color
Champagne
Jewels
32j
Frequency
28,800 bph
Power Reserve
38 hours
Year
1978

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