Grand Seiko
Sport Collection
Exterior +
High-intensity titanium 2
Stainless steel 5
Stainless steel with ceramic bezel 3
High intensity titanium /ceramic with ceramic bezel 2
Stainless steel, Caseback:Stainless steel and sapphire crystal 2
Band Material +
Crocodile leather 1
High-intensity titanium 2
Stainless steel 8
Glass Coating +
Anti-reflective coating on inner surface 14
Glass Material +
Dual-curved sapphire crystal 14
Movement +
Automatic with manual winding 5
Spring Drive 9
Water Resistance +
10 bar 2
20 bar 9
+10 to -1 seconds per day 1
+10 to -5 seconds per day 1
±10 seconds per month (±0.5 second per day) 1
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