Seiko Cal. 6635 - 396

Seiko 6635-396

The 6635-396 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6635 caliber with 21j jewels beating at 28,800 bph, it delivers a 65 hours power reserve. [seikata-wm-740280dd36f0]

Also known as: Turtle, Tuna

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
41mm
Case Thickness
9.6mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
170m
Dial Color
Green
Jewels
21j
Frequency
28,800 bph
Power Reserve
65 hours
Year
1969

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