Seiko Cal. 5646 - 985

This Spring Drive model from 1968 features a 46mm Two-Tone case. The Rotating bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-9a39f82e1e55]

Also known as: Monster, Emperor

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

46mm

Case Thickness

11.4mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

140m

Dial Color

Cream

Jewels

34j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1968

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