Seiko Cal. 6157 - 320

The 6157-320 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6157 caliber with 36j jewels beating at 28,800 bph, it delivers a 55 hours power reserve. [seikata-wm-764fe3bed855]

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

40mm

Case Thickness

10.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

80m

Dial Color

Black

Jewels

36j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1981

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