Seiko Cal. 3857 - 444

The Seiko 3857-444 represents an important milestone in Seiko's 1966 lineup. It features a Black dial protected by a Hardlex crystal and offers 30m of water resistance. [seikata-wm-92442e7ddd7b]

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

43mm

Case Thickness

8.6mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Black

Jewels

18j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1966

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