Seiko Cal. 4447 - 238

The 4447-238 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4447 caliber with 31j jewels beating at 36,000 bph, it delivers a 48 hours power reserve. [seikata-wm-cb1925447966]

Also known as: Tuna, Flighty

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

10.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Black

Jewels

31j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1970

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