Seiko Cal. 7131 - 378

The 7131-378 is a sought-after Automatic piece from Seiko's golden era. Powered by the 7131 caliber with 17j jewels beating at 36,000 bph, it delivers a 62 hours power reserve. [seikata-wm-8ae74cee3be4]

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

34mm

Case Thickness

11.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

130m

Dial Color

Navy

Jewels

17j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1965

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