Seiko Cal. 6635 - 577

Seiko 6635-577

The 6635-577 is a sought-after Kinetic piece from Seiko's golden era. It features a Silver dial protected by a Mineral crystal and offers 80m of water resistance. [seikata-wm-c3f8005d5d30]

Also known as: Tuna

Specifications

Movement
Kinetic
Case Material
PVD Black
Case Width
38mm
Case Thickness
8.9mm
Lug Width
18mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
80m
Dial Color
Silver
Jewels
17j
Frequency
21,600 bph
Power Reserve
43 hours
Year
1977

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