Seiko Cal. 6157 - 275

The 6157-275 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6157 caliber with 30j jewels beating at 36,000 bph, it delivers a 59 hours power reserve. [seikata-wm-6dfc5982a9d9]

Also known as: Navigator, Flighty

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

12.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Green

Jewels

30j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1979

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