Seiko Cal. 6628 - 412

This Automatic model from 1966 features a 39mm Hardlex-Coated Steel case. It features a Green dial protected by a Sapphire crystal and offers 170m of water resistance. [seikata-wm-6416135bdb2f]

Also known as: UFO, Sportsmatic

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

9.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Green

Jewels

17j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1966

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