Seiko Cal. 4515 - 734

The 4515-734 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4515 caliber with 25j jewels beating at 36,000 bph, it delivers a 60 hours power reserve. [seikata-wm-f06a8a6f5d0e]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

15.1mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

200m

Dial Color

Black

Jewels

25j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1978

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