Seiko Cal. 5613 - 746

Seiko 5613-746

The 5613-746 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5613 caliber with 28j jewels beating at 28,800 bph, it delivers a 55 hours power reserve. [seikata-wm-69ae9c1c55a2]

Also known as: Sportsmatic

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
43mm
Case Thickness
12.9mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
70m
Dial Color
Navy
Jewels
28j
Frequency
28,800 bph
Power Reserve
55 hours
Year
1979

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seikata-wm-69ae9c1c55a2