Nautilus Moon Phase

Reference 5712/1A-001

40 mm

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Specifications

Details

Brand: Patek Philippe
Model: Nautilus Moon Phase
Reference: 5712/1A-001

Case

Material: Stainless steel (height 8.52 mm)
Size: 40 mm
Dial: Black-blue
Bezel: Steel
Crystal: Sapphire crystal case back (front crystal not detailed on source)

Movement

Type: Self-winding mechanical (off-centre 22K gold mini-rotor)
Caliber: 240 PS IRM C LU
Power reserve: 38-48 hours
Water resistance: 60 m (per archived patek.com page)
Production: Steel version no longer in patek.com Nautilus line-up (Oct 2026); years not verified
Functions: Date (hand), Moon phases, Power-reserve indicator, Small seconds