Seiko Cal. 5616 - 391

Released in 1977, the Cal. 5616 with design code 391 was part of Seiko's domestic market collection. The Fixed bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-ac72914bfb71]

Also known as: Bellmatic

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

34mm

Case Thickness

8.9mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

40m

Dial Color

Burgundy

Jewels

32j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1977

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