Your purchase notes
Keep the details in one place.
A gold dial, gold-colour bracelet and solid-gold case are different things. Use the reference number to pin down the watch.
List the case material, bracelet material, finish and colours separately. A collection name can cover many versions, so retain the manufacturer’s full reference.
Plan the cost of your purchase
Explore your own cost-per-use scenario. Enter a realistic plan and include known extras. The result is arithmetic, not a claim about durability, performance or resale value.