Seiko Cal. 3857 - 663

Released in 1971, the Cal. 3857 with design code 663 was part of Seiko's domestic market collection. It features a Navy dial protected by a Acrylic crystal and offers 70m of water resistance. [seikata-wm-ac1ec72a1139]

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

12.1mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Navy

Jewels

22j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1971

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