Seiko Cal. 3813 - 285

This Spring Drive model from 1992 features a 35mm Two-Tone case. Powered by the 3813 caliber with 28j jewels beating at 21,600 bph, it delivers a 66 hours power reserve. [seikata-wm-cfbfffe54661]

Also known as: Monster, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

35mm

Case Thickness

14.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Burgundy

Jewels

28j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1992

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