Seiko Cal. 0783 - 770

This Spring Drive model from 1985 features a 35mm Two-Tone case. With its 18mm lug width and 13.3mm profile, it sits comfortably on most wrists. [seikata-wm-fd7cd031fc5d]

Also known as: Monster, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

35mm

Case Thickness

13.3mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Navy

Jewels

33j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1985

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