Seiko Cal. 3856 - 447

Released in 1977, the Cal. 3856 with design code 447 was part of Seiko's domestic market collection. The Coin-Edge bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-dc3e603cd8ef]

Also known as: Helmet

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

42mm

Case Thickness

13.6mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

White

Jewels

33j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1977

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