Seiko Cal. 6157 - 349

This Automatic model from 1970 features a 42mm Two-Tone case. Powered by the 6157 caliber with 31j jewels beating at 28,800 bph, it delivers a 53 hours power reserve. [seikata-wm-a9e0dda24bcf]

Also known as: Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

42mm

Case Thickness

14.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Black

Jewels

31j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1970

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