Seiko Cal. 6131 - 153

This Automatic model from 1990 features a 39mm Two-Tone case. Powered by the 6131 caliber with 22j jewels beating at 36,000 bph, it delivers a 44 hours power reserve. [seikata-wm-840326c8dbfb]

Also known as: Baby Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

39mm

Case Thickness

8.4mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Silver

Jewels

22j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1990

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