The Jean Marcel Optimum collection offers ultra slim automatic watches with a total thickness of only 7.5 mm. These Swiss Made wristwatches are among the most slim three-hand automatic watches of the contemporary era.
With a case diameter of 40 millimetres, the timepieces fit harmoniously on the wrist. The Optimum is water-resistant up to 5 ATM and equipped with 2 sapphire crystals. These super-slim dress watches also have a date indication, which has been innovatively implemented on the left half of the dial.
The base calibre is 11 ½ ETA 2892A2 Top in a special “réduit” version with a shortened hand height. The elaborately finished calibre can be seen through the sapphire crystal case back. The Optimum Curved watch comes in three dial versions: ocean blue, slate grey and emerald green.
Ultimate Precision (UP)
With the new Optimum Curved UP collection, Jean Marcel is also introducing a new standard of quality and precision, focused on the precision of the movements. The internal specifications of this precision standard are stricter than the requirements of the official chronometer testing institute COSC.
Only watches with an average daily deviation in the range of 0 to +4 seconds are certified with the Ultimate Precision seal. In addition, the amplitude must be at least 270° and the beat error must not exceed 0.7ms. Every buyer receives a hand-signed certificate with his watch, documenting not only the average daily rate, but also the determined values for amplitude and beat error.
Model: Jean Marcel Automatik Optimum
Ref. 510.60.92.58: with emerald green dial
Ref. 510.60.62.57: with ocean blue dial
Ref. 510.60.42.113: with slate grey dial
Stainless steel 316L
Diameter: 40.0 mm
Height: 7.50 mm
Lug width: 20 mm
Water-resistant: 5 ATM
Crystal: anti-reflective sapphire crystal
Caseback crystal: sapphire crystal
JM A97 (base ETA 2892A2), Swiss Made Automatic
Frequency: 28,800 A/h
Power reserve: 46 hours
Functions: hours, minutes, seconds, date
High level movement in Top execution with Glucydur balance, blued screws and premium polishing
Each version is limited to 100 pieces