Seiko Cal. 5275 - 747

The Seiko 5275-747 represents an important milestone in Seiko's 1973 lineup. Powered by the 5275 caliber with 33j jewels beating at 28,800 bph, it delivers a 66 hours power reserve. [seikata-wm-a5fa5fe0098d]

Also known as: Helmet, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

8.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Silver

Jewels

33j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1973

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