Seiko Cal. 7187 - 475

The 7187-475 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7187 caliber with 25j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-8001ec679185]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

40mm

Case Thickness

13.3mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

90m

Dial Color

Black

Jewels

25j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1967

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