Seiko Cal. 6690 - 618

The Seiko 6690-618 represents an important milestone in Seiko's 1987 lineup. It features a Burgundy dial protected by a Mineral crystal and offers 110m of water resistance. [seikata-wm-601d273c00cc]

Also known as: Samurai, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

15.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Burgundy

Jewels

29j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1987

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