Seiko Cal. 6690 - 380

The 6690-380 is a sought-after Automatic piece from Seiko's golden era. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 170m of water resistance. [seikata-wm-7007752a8e25]

Also known as: Tuna, UFO

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

43mm

Case Thickness

14.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1966

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