Seiko Cal. 4438 - 107

This Quartz model from 1970 features a 37mm Hardlex-Coated Steel case. Powered by the 4438 caliber with 21j jewels beating at 28,800 bph, it delivers a 63 hours power reserve. [seikata-wm-0608a106bed5]

Also known as: Goldfeather, Bellmatic

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

15.5mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Burgundy

Jewels

21j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1970

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