Seiko Cal. 4437 - 707

This Hand-Winding model from 1972 features a 43mm Gold-Plated case. Powered by the 4437 caliber with 21j jewels beating at 36,000 bph, it delivers a 38 hours power reserve. [seikata-wm-c14cd0d4cad7]

Also known as: Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

9.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Green

Jewels

21j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1972

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