Seiko Cal. 7187 - 104

Seiko 7187-104

The 7187-104 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 7187 caliber with 31j jewels beating at 36,000 bph, it delivers a 66 hours power reserve. [seikata-wm-fe8cc6d050f8]

Also known as: Bullhead, Goldfeather

Specifications

Movement
Hand-Winding
Case Material
Two-Tone
Case Width
35mm
Case Thickness
13.0mm
Lug Width
22mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
150m
Dial Color
Navy
Jewels
31j
Frequency
36,000 bph
Power Reserve
66 hours
Year
1975

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