Seiko Cal. 0731 - 516

The Seiko 0731-516 represents an important milestone in Seiko's 1969 lineup. Powered by the 0731 caliber with 20j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-df72b0560739]

Also known as: Panda, Helmet

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

11.4mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Green

Jewels

20j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1969

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