Seiko Cal. 4447 - 770

The 4447-770 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4447 caliber with 21j jewels beating at 36,000 bph, it delivers a 61 hours power reserve. [seikata-wm-5b7d50bfe10c]

Also known as: Tuna, Rally

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

9.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

White

Jewels

21j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1969

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