Seiko Cal. 6635 - 955

Seiko 6635-955

The 6635-955 is a sought-after Automatic piece from Seiko's golden era. It features a White dial protected by a Mineral crystal and offers 30m of water resistance. [seikata-wm-796057a81fc9]

Also known as: Sumo, Tuna

Specifications

Movement
Automatic
Case Material
Two-Tone
Case Width
43mm
Case Thickness
8.5mm
Lug Width
20mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
30m
Dial Color
White
Jewels
17j
Frequency
28,800 bph
Power Reserve
62 hours
Year
1989

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