Seiko Cal. 5646 - 806

Released in 1991, the Cal. 5646 with design code 806 was part of Seiko's domestic market collection. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 90m of water resistance. [seikata-wm-4ea046fcb3cd]

Also known as: Sumo, UFO

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

43mm

Case Thickness

15.0mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1991

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