Seiko Cal. 6633 - 664

This Solar model from 1978 features a 36mm Two-Tone case. Powered by the 6633 caliber with 25j jewels beating at 36,000 bph, it delivers a 57 hours power reserve. [seikata-wm-d3af64776a38]

Also known as: Turtle, Sumo

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

36mm

Case Thickness

9.0mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Burgundy

Jewels

25j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1978

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