Seiko Cal. 5616 - 538

The 5616-538 is a sought-after Automatic piece from Seiko's golden era. Powered by the 5616 caliber with 23j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-cb12e1b8551e]

Also known as: Sumo, Emperor

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

12.0mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

White

Jewels

23j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1978

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