Seiko Cal. 4487 - 793

This Spring Drive model from 1973 features a 39mm Hardlex-Coated Steel case. It features a Cream dial protected by a Sapphire crystal and offers 50m of water resistance. [seikata-wm-0b8fd50ff157]

Also known as: UFO, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

9.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Cream

Jewels

17j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1973

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