Seiko Cal. 3857 - 877

Released in 1985, the Cal. 3857 with design code 877 was part of Seiko's domestic market collection. It features a Navy dial protected by a Hardlex crystal and offers 170m of water resistance. [seikata-wm-b2bdba062fd7]

Also known as: Sea Horse

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

11.4mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Navy

Jewels

18j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1985

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