Seiko Cal. 3851 - 854

The Seiko 3851-854 represents an important milestone in Seiko's 1965 lineup. Powered by the 3851 caliber with 32j jewels beating at 21,600 bph, it delivers a 59 hours power reserve. [seikata-wm-b57085e628ac]

Also known as: Samurai, Monster

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

46mm

Case Thickness

15.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Navy

Jewels

32j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1965

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