Frequently Asked Questions
How much is a MB&F 91.SWL.BU worth?+
Pricing data for the MB&F 91.SWL.BU is being collected. As dealers list and sell this reference through WatchOS auctions, verified pricing intelligence will appear on this page.
Is the MB&F 91.SWL.BU still in production?+
Yes, the MB&F 91.SWL.BU has been in production since 2023 and is still part of the current MB&F catalogue.
What movement does the MB&F 91.SWL.BU use?+
The MB&F 91.SWL.BU is powered by a HM9 movement, featuring Hours, Minutes, Power Reserve Indicator.
What are the specs of the MB&F 91.SWL.BU?+
The MB&F 91.SWL.BU features a 47mm White Gold, Sapphire case, See-through dial, 30m water resistance, Sapphire crystal.