Here is a swiss eta black bay style homage. it is 41mm all stainless steel case. the glass is double domed sapphire. the bezel is red but we also have blue and black bezel inserts that come with purchase. This is a pro diver rated at 20atm or 660 feet. screw down crown and caseback. this watch has a very nice gilt dial with raised numbers the hands are snowflake in gold trim.
LUG SIZE IS 21MM