Seiko Cal. 0770 - 505

This Spring Drive model from 1996 features a 40mm Stainless Steel case. With its 21mm lug width and 12.8mm profile, it sits comfortably on most wrists. [seikata-wm-216b1b32b4ac]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

12.8mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Green

Jewels

32j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1996

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