Seiko Cal. 7187 - 154

Released in 1997, the Cal. 7187 with design code 154 was part of Seiko's domestic market collection. Powered by the 7187 caliber with 25j jewels beating at 28,800 bph, it delivers a 56 hours power reserve. [seikata-wm-cda1ae032b35]

Also known as: Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

14.9mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Green

Jewels

25j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1997

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