Seiko Cal. 3857 - 988

Released in 1989, the Cal. 3857 with design code 988 was part of Seiko's domestic market collection. It features a Green dial protected by a Acrylic crystal and offers 40m of water resistance. [seikata-wm-981c26a81d8e]

Also known as: Helmet, World Timer

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

41mm

Case Thickness

12.7mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Green

Jewels

29j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1989

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