Seiko Cal. 0770 - 720

This Spring Drive model from 1999 features a 37mm Gold-Plated case. With its 22mm lug width and 10.3mm profile, it sits comfortably on most wrists. [seikata-wm-72307cbd4d9b]

Also known as: Sportsmatic, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

10.3mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Green

Jewels

27j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1999

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