Seiko Cal. 5275 - 747

Seiko 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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