Seiko Cal. 6618 - 691

This Solar model from 1966 features a 39mm Two-Tone case. It features a Navy dial protected by a Acrylic crystal and offers 150m of water resistance. [seikata-wm-1b8d616d88a8]

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

39mm

Case Thickness

14.8mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

150m

Dial Color

Navy

Jewels

30j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1966

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