Seiko Cal. 7187 - 777

The 7187-777 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 7187 caliber with 30j jewels beating at 36,000 bph, it delivers a 43 hours power reserve. [seikata-wm-635d3adfff29]

Also known as: Arnie

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

41mm

Case Thickness

11.9mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1966

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