Seiko Cal. 4420 - 939

The Seiko 4420-939 represents an important milestone in Seiko's 1967 lineup. It features a Silver dial protected by a Mineral crystal and offers 30m of water resistance. [seikata-wm-dfdbc716aebf]

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

10.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Silver

Jewels

34j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1967

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