Seiko Cal. 6690 - 900

Seiko 6690-900

The 6690-900 is a sought-after Spring Drive piece from Seiko's golden era. It features a Burgundy dial protected by a Acrylic crystal and offers 180m of water resistance. [seikata-wm-78be6618e5cc]

Also known as: Samurai, Bullhead

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
41mm
Case Thickness
12.2mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
180m
Dial Color
Burgundy
Jewels
29j
Frequency
36,000 bph
Power Reserve
67 hours
Year
1988

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