Glycine Airman Vintage Noon Purist vs Glycine Airman Purist Men's Watch GL0494

Both watches run the same Sellita SW330-2 movement with a 24-hour dial, sapphire crystal and bi-directional bezel, so they keep time and track a second time zone identically. The Airman Purist GL0494 is the tougher pick: 42mm case, screw-down crown and 100m water resistance. The Vintage Noon Purist GL0377 is the more compact and dressier pick at 40mm, but its pull-push crown and 50m rating make it a desk watch, not a pool watch. Buyers who want a smaller, vintage-styled Airman take the 40mm; everyone else is better served by the 42mm.

• Choose the Vintage Noon Purist GL0377 if you want a smaller 40mm case that slips under a cuff and prefer the vintage Noon dial with triangle indexes.
• Choose the Airman Purist GL0494 if you want a screw-down crown, 100m water resistance and a larger 42mm presence on the wrist.