Seiko Cal. 5690 - 355

The 5690-355 is a sought-after Quartz piece from Seiko's golden era. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 100m of water resistance. [seikata-wm-5af4ba675ada]

Also known as: Sumo, World Timer

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

43mm

Case Thickness

8.7mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1966

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