Seiko Cal. 4415 - 155

The 4415-155 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4415 caliber with 28j jewels beating at 28,800 bph, it delivers a 43 hours power reserve. [seikata-wm-e192a10df910]

Also known as: Helmet, UFO

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

13.6mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Champagne

Jewels

28j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1994

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