Seiko Cal. 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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