Seiko Cal. 5271 - 743

Seiko 5271-743

The Seiko 5271-743 represents an important milestone in Seiko's 1984 lineup. Powered by the 5271 caliber with 19j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-f73b13fc50e7]

Also known as: Tuna

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
36mm
Case Thickness
10.9mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
150m
Dial Color
Cream
Jewels
19j
Frequency
28,800 bph
Power Reserve
37 hours
Year
1984

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