Seiko Cal. 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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