Seiko Cal. 6333 - 381

The Seiko 6333-381 represents an important milestone in Seiko's 1970 lineup. Powered by the 6333 caliber with 21j jewels beating at 21,600 bph, it delivers a 41 hours power reserve. [seikata-wm-1e7c83d15a3b]

Also known as: UFO

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

15.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Green

Jewels

21j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1970

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