Seiko Cal. 4515 - 654

The 4515-654 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4515 caliber with 28j jewels beating at 28,800 bph, it delivers a 46 hours power reserve. [seikata-wm-0f5b4d62d8b1]

Also known as: Helmet, Navigator

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

44mm

Case Thickness

9.2mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

30m

Dial Color

White

Jewels

28j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1970

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