Seiko Cal. 6690 - 369

Seiko 6690-369

The 6690-369 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6690 caliber with 25j jewels beating at 36,000 bph, it delivers a 67 hours power reserve. [seikata-wm-8ea1e8e32577]

Also known as: Monster, Tuna

Specifications

Movement
Hand-Winding
Case Material
Titanium
Case Width
43mm
Case Thickness
9.6mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
30m
Dial Color
Silver
Jewels
25j
Frequency
36,000 bph
Power Reserve
67 hours
Year
1990

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