Seiko Cal. 6187 - 559

Seiko 6187-559

The 6187-559 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6187 caliber with 27j jewels beating at 21,600 bph, it delivers a 54 hours power reserve. [seikata-wm-46f3823be006]

Also known as: Sumo, Bullhead

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
35mm
Case Thickness
8.5mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
140m
Dial Color
Green
Jewels
27j
Frequency
21,600 bph
Power Reserve
54 hours
Year
1973

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