Seiko Cal. 4448 - 258

This Spring Drive model from 1999 features a 37mm PVD Black case. Powered by the 4448 caliber with 24j jewels beating at 21,600 bph, it delivers a 58 hours power reserve. [seikata-wm-725ea731bb9b]

Also known as: Helmet, Arnie

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

14.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

170m

Dial Color

Champagne

Jewels

24j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1999

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