Seiko Cal. 3813 - 865

The Seiko 3813-865 represents an important milestone in Seiko's 1973 lineup. Powered by the 3813 caliber with 34j jewels beating at 21,600 bph, it delivers a 70 hours power reserve. [seikata-wm-9d0b6bb5e4da]

Also known as: Monster

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

38mm

Case Thickness

12.3mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Navy

Jewels

34j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1973

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