Seiko Cal. 3859 - 854

The Seiko 3859-854 represents an important milestone in Seiko's 1966 lineup. Powered by the 3859 caliber with 28j jewels beating at 28,800 bph, it delivers a 67 hours power reserve. [seikata-wm-f2e127bd01ee]

Also known as: Monster, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

46mm

Case Thickness

15.5mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

28j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1966

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