Seiko Cal. 7137 - 178

The 7137-178 is a sought-after Solar piece from Seiko's golden era. Powered by the 7137 caliber with 31j jewels beating at 36,000 bph, it delivers a 66 hours power reserve. [seikata-wm-b017e40134d3]

Also known as: Monster

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

11.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

70m

Dial Color

Black

Jewels

31j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1986

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