Seiko Cal. 0739 - 680

The 0739-680 is a sought-after Quartz piece from Seiko's golden era. Powered by the 0739 caliber with 28j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-b90dcacfe3ae]

Also known as: Monster, Navigator

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

35mm

Case Thickness

10.2mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Green

Jewels

28j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1981

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