Seiko Cal. 5640 - 947

The 5640-947 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 5640 caliber with 28j jewels beating at 21,600 bph, it delivers a 39 hours power reserve. [seikata-wm-d650108c536d]

Also known as: Pogue, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

43mm

Case Thickness

9.5mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Champagne

Jewels

28j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1973

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