The Louis Erard x Alain Silberstein Smile-Day Blue returns with a playful yet thoughtful perspective to contemporary Swiss watchmaking, once again blending the artistic vision of Alain Silberstein with the precision of Louis Erard. At six o’clock, a distinctive Smiledays display reveals the mood of the day through a changing smiley motif that evolves throughout the week. The expression appears in black from Monday through Friday and shifts to red for the weekend, creating a lighthearted visual reminder that time carries its own personality. Set against a vibrant blue sunray dial, Silberstein’s unmistakable design language appears through bold geometric forms and primary colors, delivering an instantly recognizable look that balances artistic expression with practical timekeeping.

A limited edition of 250 pieces annually
Ref. 75357TT05.BTT90 

The dial’s striking composition features the designer’s signature hands: a red triangular hour hand, a white arrow-shaped minute hand, and a yellow serpentine seconds hand that moves with playful energy. Beneath the design lies a reliable Swiss automatic movement, the Sellita SW220-1, offering day and date functionality alongside classic hours, minutes, and seconds. Housed in a 40 mm titanium case combining microblasted grade 2 and polished grade 5 finishes, the watch pairs durability with lightweight comfort. With 100 meters of water resistance, a visible movement through the sapphire caseback, and a limited annual production of 250 pieces, the Smile-Day Blue stands out as a collectible luxury watch that merges independent design, creative horology, and everyday wearability.


TECHNICAL SPECIFICATIONS
Movement
- Automatic
- Sellita SW220-1 Calibre
- Day/Date at 6 o'clock
Jewels
26
Frequency
28,800 Vph (4Hz)
Power Reserve
~38 hours
Functions
- Hours, minutes, seconds
- Mood of the day/date
- 3 central hands
Case
- Microblasted grade 2 titanium & polished grade 5 titanium
- 2 pieces
Measurements
- 40 mm diameter
- 22 mm lug width
- 47 mm lug-to-lug
- 11.60 mm thickness
Dial
- Blue sunray
- White transfers
- Signature Alain Silberstein Day Disc ("Smiledays") and date at 6 o'clock
Hands
Alain Silberstein signature hands:
- Red lacquered hour hand
- white lacquered minute hand
- Yellow lacquered second hand
Glass
Sapphire crystal with anti-reflective treatment on both sides
Case back
- Movement visible through the transparent caseback
- Engraved with "Louis Erard x Alain Silberstein 1 of 178"
Crown
Alain Silberstein red lacquered signature crown with Louis Erard symbol 
Water Resistance
10 bars (100 m/330 ft)
Strap
- Heather blue nylon and microblasted grade 2 titanium
- Hook-and-loop fastener system for quick adjustment
- Functional catch spring bars allowing the strap to be changed quickly
- 22.70 mm width 
- 225 mm length
- Suitable for a wrist circumference of 140 to 200 mm

Shop the Louis Erard x Alain Silberstein collection here.


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