Seiko Cal. 6691 - 190

The 6691-190 is a sought-after Solar piece from Seiko's golden era. The Coin-Edge bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-fbabc1791ce6]

Also known as: Tuna, UFO

Specifications

Movement

Solar

Case Material

Titanium

Case Width

37mm

Case Thickness

12.6mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

White

Jewels

24j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1989

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