Seiko Cal. 6689 - 681

The Seiko 6689-681 represents an important milestone in Seiko's 1971 lineup. It features a Burgundy dial protected by a Sapphire crystal and offers 40m of water resistance. [seikata-wm-1ad7433c6ac9]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

34mm

Case Thickness

11.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Burgundy

Jewels

35j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1971

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