Seiko Cal. 4420 - 158

This Spring Drive model from 1999 features a 45mm Gold-Plated case. Powered by the 4420 caliber with 23j jewels beating at 21,600 bph, it delivers a 46 hours power reserve. [seikata-wm-0d9cbb26d1ad]

Also known as: Samurai, Helmet

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

13.8mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

130m

Dial Color

Navy

Jewels

23j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1999

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