Seiko Cal. 3857 - 830

The Seiko 3857-830 represents an important milestone in Seiko's 1982 lineup. Powered by the 3857 caliber with 23j jewels beating at 28,800 bph, it delivers a 65 hours power reserve. [seikata-wm-c415cdd2e806]

Also known as: Bellmatic, Crown

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

35mm

Case Thickness

12.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1982

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