Seiko Cal. 6635 - 689

Seiko 6635-689

Released in 1982, the Cal. 6635 with design code 689 was part of Seiko's domestic market collection. Powered by the 6635 caliber with 17j jewels beating at 28,800 bph, it delivers a 51 hours power reserve. [seikata-wm-8d982159714b]

Also known as: Turtle, Baby Tuna

Specifications

Movement
Hand-Winding
Case Material
PVD Black
Case Width
44mm
Case Thickness
9.0mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
180m
Dial Color
Silver
Jewels
17j
Frequency
28,800 bph
Power Reserve
51 hours
Year
1982

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seikata-wm-8d982159714b