Seiko Cal. 6139 - 502

The 6139-502 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6139 caliber with 36j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-d4785989eb04]

Also known as: Baby Tuna

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

39mm

Case Thickness

9.2mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

200m

Dial Color

Black

Jewels

36j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1986

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