Seiko Cal. 5616 - 503

Seiko 5616-503

The Seiko 5616-503 represents an important milestone in Seiko's 1975 lineup. Powered by the 5616 caliber with 35j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-6d14154ed313]

Also known as: Turtle, Flighty

Specifications

Movement
Hand-Winding
Case Material
PVD Black
Case Width
42mm
Case Thickness
8.1mm
Lug Width
18mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
100m
Dial Color
Silver
Jewels
35j
Frequency
28,800 bph
Power Reserve
50 hours
Year
1975

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