Seiko Cal. 0789 - 710

This Automatic model from 1991 features a 39mm Hardlex-Coated Steel case. The Rotating bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-41d17390e42d]

Also known as: Sumo, UFO

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

10.9mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

40m

Dial Color

White

Jewels

35j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1991

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