Seiko Cal. 5646 - 306

Released in 1967, the Cal. 5646 with design code 306 was part of Seiko's domestic market collection. It features a Burgundy dial protected by a Acrylic crystal and offers 160m of water resistance. [seikata-wm-3a7701386a20]

Also known as: Tuna, Emperor

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

15.5mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Burgundy

Jewels

36j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1967

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