Seiko Cal. 5243 - 660

This Spring Drive model from 1977 features a 45mm Titanium case. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 140m of water resistance. [seikata-wm-30a1dc484f04]

Also known as: Sumo, UFO

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

45mm

Case Thickness

15.6mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

20j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1977

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