Seiko Cal. 0733 - 284

The Seiko 0733-284 represents an important milestone in Seiko's 1968 lineup. Powered by the 0733 caliber with 25j jewels beating at 28,800 bph, it delivers a 52 hours power reserve. [seikata-wm-60e10de4b3cd]

Also known as: Tuna, World Timer

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

8.9mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

25j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1968

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