Seiko Cal. 5646 - 120

Released in 1977, the Cal. 5646 with design code 120 was part of Seiko's domestic market collection. It features a Silver dial protected by a Acrylic crystal and offers 60m of water resistance. [seikata-wm-d958c877ed12]

Also known as: UFO, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

44mm

Case Thickness

12.7mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Silver

Jewels

33j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1977

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