Mechanics 8 min read
How an automatic watch works
Your wrist gives it energy. A spring saves it. A tiny balance sets the rhythm. Follow the journey inside an automatic watch, one pencil drawing at a time.
Panerai · Luminor
Luminor Submersible 47 3 Days Chrono
Ref. PAM02239
Watch details and strap advice
- Case diameter
- 47 mm
- Case material
- Coated Steel
- Case shape
- Cushion
- Water resistance
- 300 m
- Movement
- Automatic
- Caliber
- P.9100/R
- Dial
- Black
The Panerai Luminor Submersible 47 3 Days Chrono Flyback Forze Speciali takes a 26 mm strap: measure between the lugs and that is the only number you need. Built for water, it wears naturally on rubber or a nylon NATO; a leather strap keeps it for dry days. With a 47 mm case and 300 m of water resistance, a thicker strap balances the case. Automatic movement. Most straps here come with quick-release spring bars, so the swap takes a minute and no tool.
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