Seiko Cal. 7139 - 490

The 7139-490 is a sought-after Quartz piece from Seiko's golden era. Powered by the 7139 caliber with 32j jewels beating at 36,000 bph, it delivers a 51 hours power reserve. [seikata-wm-622b27ca1ae1]

Also known as: Sumo

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

34mm

Case Thickness

10.5mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Black

Jewels

32j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1965

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