Seiko Cal. 6646 - 336

This Quartz model from 1965 features a 37mm Two-Tone case. Powered by the 6646 caliber with 17j jewels beating at 28,800 bph, it delivers a 44 hours power reserve. [seikata-wm-c8635ed5a59c]

Also known as: Monster, Arnie

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

37mm

Case Thickness

8.9mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Navy

Jewels

17j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1965

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