Seiko Cal. 5613 - 656

Seiko 5613-656

The 5613-656 is a sought-after Kinetic piece from Seiko's golden era. The Bidirectional bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-965a332e59d9]

Also known as: Tuna, Helmet

Specifications

Movement
Kinetic
Case Material
Stainless Steel
Case Width
37mm
Case Thickness
15.9mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
170m
Dial Color
Cream
Jewels
36j
Frequency
21,600 bph
Power Reserve
36 hours
Year
1968

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