Seiko Cal. 6635 - 648

Seiko 6635-648

The 6635-648 is a sought-after Automatic piece from Seiko's golden era. It features a Silver dial protected by a Mineral crystal and offers 190m of water resistance. [seikata-wm-f13d0329c6f9]

Also known as: Turtle

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
41mm
Case Thickness
14.0mm
Lug Width
19mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
190m
Dial Color
Silver
Jewels
18j
Frequency
36,000 bph
Power Reserve
48 hours
Year
1975

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