Seiko Cal. 4415 - 722

This Spring Drive model from 1970 features a 37mm PVD Black case. With its 19mm lug width and 8.0mm profile, it sits comfortably on most wrists. [seikata-wm-b18914271f0a]

Also known as: Arnie

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

8.0mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Burgundy

Jewels

35j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1970

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