Seiko Cal. 4428 - 478

The 4428-478 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4428 caliber with 18j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-ea60dfc8939f]

Also known as: Pogue, World Timer

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

12.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

190m

Dial Color

White

Jewels

18j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1973

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