Seiko Cal. 6634 - 587

This Solar model from 1968 features a 35mm PVD Black case. It features a Navy dial protected by a Acrylic crystal and offers 80m of water resistance. [seikata-wm-3d436ac341d1]

Also known as: Sumo, UFO

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

35mm

Case Thickness

12.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Navy

Jewels

24j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1968

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