Seiko Cal. 3818 - 133

The Seiko 3818-133 represents an important milestone in Seiko's 1991 lineup. Powered by the 3818 caliber with 28j jewels beating at 28,800 bph, it delivers a 57 hours power reserve. [seikata-wm-5d35713ccd8a]

Also known as: UFO, Bellmatic

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

15.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Cream

Jewels

28j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1991

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