Heritage Narrative
Launched in 1961, the reference 3445 was Patek Philippe’s first automatic wristwatch produced in regular series to feature a date display. Its heart is the Calibre 27-460 M—an evolution of the firm’s inaugural self-winding movement—adding a quick-set calendar while preserving the meticulous hand-finishing that defines earlier Calatravas. Collectors often view the 3445 as a transition piece bridging mid-century, manually wound dress watches and the more technically ambitious offerings of the 1970s: it retains the minimalist Calatrava aesthetic while introducing a practical date function and a 37-jewel, Gyromax-equipped automatic drivetrain. With an 18 ct yellow-gold case, plexiglass crystal, and a refined small-seconds sub-dial, this circa-1971 example represents a pivotal era in Patek Philippe’s history—where discreet luxury met innovative mechanics.
Collectability: GOLDAMMER
Technical Specifications
Brand / Model:
Patek Philippe Calatrava
Reference / Case No.:
3445 / 331901
Year (Est.):
1971
Condition:
Very good vintage condition
Certificate / Box:
Heritage Timepieces certificate of authenticity (no original box/papers)
Case Size:
35 mm, 18 ct yellow gold, snap-back, signed crown
Movement:
Patek Philippe Cal. 27-460 M, automatic, 37 jewels, Gyromax balance, 21k rotor
Dial / Crystal:
Silvered dial with applied baton markers; date at 3 o’clock; small-seconds at 6; plexiglass crystal
Strap / Buckle:
Dark brown alligator leather strap with gold-plated pin buckle
Warranty:
Not covered by factory warranty; service warranty available through Heritage Timepieces
Condition & Inclusions
Overall Grade:
Very good – lugs and hallmarks remain sharp; only light hairlines visible.
Dial & Hands:
Original, with evenly distributed patina.
Movement:
Running within vintage tolerances; amplitude and rate last checked May2025.
Scope of Delivery:
Watch as described, plus Heritage Timepieces certificate of authenticity.
Shipping & Logistics
Our watches are stored either in a secure bank vault or, by arrangement, kept with the owner. We ship worldwide within 1–3 business days, fully insured for your peace of mind.
Warranty & Returns
We stand behind our timepieces with a 12-month mechanical warranty and a lifetime authenticity guarantee. A 14-day return window applies, during which the watch must be returned in the same condition as received.
