Smartlet One

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Wear a smartwatch with your Blancpain Fifty Fathoms | Smartlet

Compatibility guide

Wear a smartwatch
with your Blancpain Fifty Fathoms

Smartlet is compatible with the Blancpain Fifty Fathoms. All references use 23mm lugs, natively supported with no adapter. Installation uses the standard spring-bar system - no modification to the watch, fully reversible in seconds.

ModelBlancpain Fifty Fathoms

Lug width20mm / 21mm / 23mm

Case size45mm

MovementCal. 1315

Water resistance300m

References81 references

Smartlet compatibleYes

References

Covered references

20 references covered. All compatible with Smartlet.

Reference	Smartlet	Lug width	Case	Case material	Dial
5015-12B40-O52A	Compatible	23mm	45mm	Titanium	Grey
5066F-1210-B52A	Compatible	23mm	45mm	Titanium	Black Gmt
5010-BLU-2024	Compatible	21mm	45mm	Titanium Blue	Blue Sunburst
5085F-1140-52	Compatible	23mm	45mm	Titanium	Black
5015-3630-52A	Compatible	23mm	45mm	18K Red Gold	Black
5015-11C30-52	Compatible	23mm	45mm	Black Ceramic	Black
5085F-1230-52A	Compatible	23mm	45mm	Titanium	Grey
5015-12C30-52B	Compatible	23mm	45mm	Blue Ceramic	Blue
5015-12B30-B52A	Compatible	23mm	45mm	Titanium	Grey
5015-12OW-52	Compatible	23mm	45mm	Titanium	Orange
5015-12B30-52	Compatible	23mm	45mm	Titanium	Black
5050-12B30-B52A	Compatible	23mm	45mm	Titanium	Blue
5015-12B40-52	Compatible	23mm	45mm	Titanium	Blue
5015-12B40-O52A	Compatible	23mm	45mm	Titanium	Deep Black
5015-12O40-O52A	Compatible	23mm	45mm	Titanium	Black/Orange
5050-12B30-98B	Compatible	23mm	45mm	Titanium	Blue
50015-12B30-98	Compatible	23mm	45mm	Titanium	Black
5010-12B30-T3-2024	Compatible	21mm	45mm	Titanium Grade 23	Charcoal Grey
FF-USN-1965	Compatible	20mm	45mm	Steel	Black Usn
FF-BUND-1968-TRIB	Compatible	20mm	45mm	Steel	Black Military

Smartlet compatibility

The Blancpain Fifty Fathoms uses 20mm to 23mm lug widths depending on reference. Smartlet attaches via the standard spring-bar system. Zero contact with the watch case, lugs, or crystal. Fully reversible in seconds.

Compatible smartwatches

Smartwatches to pair with your Fifty Fathoms

All smartwatches below can be worn simultaneously with your Fifty Fathoms via Smartlet.

View all compatible smartwatches →

Questions

Frequently asked

Is Smartlet compatible with the Blancpain Fifty Fathoms?+

Yes. All Fifty Fathoms references use 23mm lugs - natively supported by Smartlet. No adapter required. The Cal. 1315 movement and case seals are completely unaffected.

Does Smartlet affect the Fifty Fathoms water resistance?+

No. Smartlet uses the same spring-bar attachment as any strap change. The crown tube and case seals are not touched. 300m water resistance is maintained.

Can I pair the Fifty Fathoms with an Apple Watch using Smartlet?+

Yes. Smartlet positions your Apple Watch on the same strap as the Fifty Fathoms. Both run simultaneously. All sensors remain operational.

Does Smartlet work with the Blancpain Fifty Fathoms?+

Yes. The Fifty Fathoms uses 23mm lugs, natively supported by Smartlet. No adapter required.

Will Smartlet affect the water resistance of my Fifty Fathoms?+

No. Smartlet uses standard spring bars, the same as any strap change. The movement seals are not touched.

Which Fifty Fathoms references are compatible?+

All of them. The 23mm lug width applies across Bathyscaphe and standard references, fully covered by Smartlet.