Smartlet One

One concept. Three different personalities

Wear a smartwatch with your Yema Superman Heritage | Smartlet

Yema compatibility guide

Wear a smartwatch
with your Yema Superman Heritage

Smartlet is compatible with the Yema Superman Heritage. Lug width: 19mm / 20mm - natively supported with no adapter. Installation uses the standard spring-bar system. No modification to the watch required. Fully reversible in seconds.

Yema launched the Superman in 1963 - the same year the Rolex Submariner was establishing the dive watch category. While the Swiss giants took the international market, the Superman became the dive watch for French professional divers, military frogmen, and the Cousteau expeditions. Sixty years later, the Superman Heritage revives that identity with modern specifications: 300m water resistance, in-house movements, and a case that reads as original because it is. The French watch community's loyalty to it is not nostalgia - it is earned.

ModelYema Superman Heritage

Lug width19mm / 20mm

Case size39mm / 41mm

MovementCal. MBP 5021 / ETA 2824

Water resistance300m

Introduced1963

Smartlet compatibleYes

References

Covered references

Reference	Smartlet	Lug width	Case	Case material	Dial
YSUP-PDF-2020	Compatible	19mm	39mm	Stainless Steel	Blue Paf
YSUP-1963-LE250	Compatible	19mm	39mm	Stainless Steel	Black
YSUP-1970-RE-2017	Compatible	20mm	41mm	Stainless Steel	Black Vintage
SM500-2022	Compatible	20mm	41mm	Stainless Steel	Black
SM-BRZ-GMT-2021	Compatible	20mm	41mm	Bronze	Pepsi Gmt
SM-BRZ-BLU-2022	Compatible	20mm	41mm	Bronze	Blue Sunburst
SM-CH-BRZ-2023	Compatible	20mm	41mm	Bronze	Black
SM-CH-1970	Compatible	19mm	39mm	Stainless Steel	Black
SM-CH-2021	Compatible	20mm	41mm	Stainless Steel	Black/White
SM-CH-PND-2022	Compatible	20mm	41mm	Stainless Steel	White/Black Panda
SM-FAF-2020	Compatible	20mm	41mm	Stainless Steel	Black Faf
FRA-SUP-1975	Compatible	19mm	39mm	Stainless Steel	Black
YSUP-BRZ-2021	Compatible	19mm	39mm	Bronze	Black
YSUP2018-BLK	Compatible	19mm	39mm	Stainless Steel	Black
YSUP2018-BLU	Compatible	19mm	39mm	Stainless Steel	Blue
YSUP2020-41BLK	Compatible	20mm	41mm	Stainless Steel	Black
YSUP2022-GMT-PEP	Compatible	20mm	41mm	Stainless Steel	Blue/Red Gmt
YSUP-II-1984	Compatible	19mm	39mm	Stainless Steel	Black
YSUP-MAXI-2021	Compatible	20mm	41mm	Stainless Steel	Black Maxi
YSUP-SD500-1970	Compatible	19mm	39mm	Stainless Steel	Black
SM-SLIM-2022	Compatible	19mm	39mm	Bronze	Black
SM-WT-2023	Compatible	20mm	41mm	Stainless Steel	Black Worldtime

Smartlet compatibility

The Yema Superman Heritage uses 19mm and 20mm 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 Yema Superman Heritage

All smartwatches below can be worn simultaneously with your Yema Superman Heritage via Smartlet.

View all compatible smartwatches →

Similar models from other brands

Watch lovers who own a Yema Superman Heritage also pair Smartlet with these models.

View all compatible models →

Questions

Frequently asked

Does Smartlet work with the Yema Superman Heritage?+

Yes. The Superman Heritage uses 19mm or 20mm lugs - both natively supported by Smartlet. No adapter required.

Does Smartlet affect the Superman's 300m water resistance?+

No. Smartlet attaches via the spring-bar slots only - the same attachment method as any strap change. The crown seals and water resistance rating are not affected.

Which Yema Superman references work with Smartlet?+

YSUP2018, YSUP2020, YSUP-MAXI, SM500, SM-BRZ, SM-CH series - all references from 39mm to 41mm. The full Superman catalogue is natively supported.

Where can I buy Smartlet for the Yema Superman Heritage?+

Smartlet is available at smartlet.io in Classic, Shadow, and Titanium. Compatible with all Superman Heritage references at 19mm and 20mm lug widths.