Seiko Cal. 6646 - 955

This Automatic model from 1978 features a 42mm Two-Tone case. It features a Green dial protected by a Acrylic crystal and offers 140m of water resistance. [seikata-wm-c3be9eddfd84]

Also known as: Navigator

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

42mm

Case Thickness

8.1mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

140m

Dial Color

Green

Jewels

31j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1978

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