Seiko Cal. 4442 - 438

The 4442-438 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4442 caliber with 30j jewels beating at 36,000 bph, it delivers a 59 hours power reserve. [seikata-wm-2786026c9c55]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

14.0mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Champagne

Jewels

30j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1992

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