Seiko Cal. 0739 - 873

This Hand-Winding model from 1993 features a 36mm Hardlex-Coated Steel case. Powered by the 0739 caliber with 31j jewels beating at 21,600 bph, it delivers a 70 hours power reserve. [seikata-wm-436de231ce08]

Also known as: Monster, Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

8.0mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

190m

Dial Color

Black

Jewels

31j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1993

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