Seiko Cal. 0733 - 391

The Seiko 0733-391 represents an important milestone in Seiko's 1987 lineup. Powered by the 0733 caliber with 33j jewels beating at 28,800 bph, it delivers a 52 hours power reserve. [seikata-wm-ba33bebed5ad]

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

46mm

Case Thickness

11.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Burgundy

Jewels

33j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1987

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