Seiko Cal. 5616 - 737

Seiko 5616-737

The Seiko 5616-737 represents an important milestone in Seiko's 1972 lineup. Powered by the 5616 caliber with 36j jewels beating at 21,600 bph, it delivers a 60 hours power reserve. [seikata-wm-22fbe816ccb4]

Also known as: Baby Tuna

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
35mm
Case Thickness
13.1mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
170m
Dial Color
Navy
Jewels
36j
Frequency
21,600 bph
Power Reserve
60 hours
Year
1972

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