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Longines Master Collection L2.628.4.78.6 Automatic Mechanical Men's Wrist Watch

Longines Master Collection L2.628.4.78.6 Automatic Mechanical Men's Wrist Watch

¥27,280 JPY
¥33,130 JPY ¥27,280 JPY
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Detailed Parameters


Case Parameters
Material: 316L stainless steel
Diameter: 38.5mm
Thickness: 9.2mm ±0.1mm
Lug Width: 19mm
Crown: Screw-down steel crown
Case Back: Sapphire crystal exhibition back

Dial Parameters
Color & Texture: Silver "barleycorn" guilloché
Hour Markers: Painted Arabic numerals (3/6/9/12)
Hands: Blued steel feuille hands
Date Window: Rectangular window at 6 o'clock

Crystal Parameters
Material: Sapphire crystal
Curvature: Domed design
Scratch Resistance: Mohs hardness 9

Bracelet & Clasp Parameters
Bracelet Material: 316L stainless steel triple-link
Bracelet Width: 19mm (lug end) → 18mm (clasp end)
Clasp Type: Triple-folding safety clasp
Clasp Adjustment: Includes extension system

Bezel & Water Resistance Parameters
Bezel Design: Fixed polished steel ring
Water Resistance: 30m
Sealing Structure: Screw-down crown + O-ring rubber gaskets

Movement Parameters
Movement Model: ST2130/9015
Movement Type: Automatic mechanical
Frequency: 28,800 vph (4Hz)
Power Reserve: 40-42 hours
Functions: Hours, minutes, seconds + instant date change
FInishing: Fish-scale pattern bridges, blued screws
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