Seiko Cal. 4438 - 506

This Hand-Winding model from 1969 features a 37mm Stainless Steel case. Powered by the 4438 caliber with 23j jewels beating at 36,000 bph, it delivers a 60 hours power reserve. [seikata-wm-96bf89cd5ce0]

Also known as: Panda, Flighty

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

10.1mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Black

Jewels

23j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1969

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