Seiko Cal. 6636 - 490

Seiko 6636-490

The 6636-490 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6636 caliber with 17j jewels beating at 21,600 bph, it delivers a 45 hours power reserve. [seikata-wm-5893b00d63e8]

Also known as: Tuna, Baby Tuna

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
34mm
Case Thickness
12.3mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
40m
Dial Color
Burgundy
Jewels
17j
Frequency
21,600 bph
Power Reserve
45 hours
Year
1999

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