Seiko Cal. 4420 - 464

This Spring Drive model from 1970 features a 34mm PVD Black case. Powered by the 4420 caliber with 21j jewels beating at 21,600 bph, it delivers a 72 hours power reserve. [seikata-wm-d87d01773ebd]

Also known as: Panda

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

15.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

White

Jewels

21j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1970

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