Seiko Cal. 6139 - 490

This Hand-Winding model from 1990 features a 37mm Two-Tone case. Powered by the 6139 caliber with 19j jewels beating at 21,600 bph, it delivers a 46 hours power reserve. [seikata-wm-73b42a99546f]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

37mm

Case Thickness

15.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Navy

Jewels

19j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1990

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