Seiko Cal. 0770 - 439

The 0770-439 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 0770 caliber with 18j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-ba2eb41acc90]

Also known as: Samurai

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

12.8mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

150m

Dial Color

White

Jewels

18j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1984

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