Seiko Cal. 6635 - 489

Seiko 6635-489

The 6635-489 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6635 caliber with 31j jewels beating at 28,800 bph, it delivers a 65 hours power reserve. [seikata-wm-3a57d278a38e]

Also known as: Shogun, Sea Horse

Specifications

Movement
Spring Drive
Case Material
Titanium
Case Width
42mm
Case Thickness
9.3mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
110m
Dial Color
White
Jewels
31j
Frequency
28,800 bph
Power Reserve
65 hours
Year
1987

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