
Among Zenith’s premium timepieces, this intriguing wrist watch lined as one of the Class El Primero T Open series for gents. Of course, as expected from the renown watchmaker, behind its aesthetic, there are carefully selected materials and components that are finely executed with such precision craftsmanship to ensure that the watch’s beauty, as well as its sophisticated offerings would remain as is for years to come.
This Zenith 03-0510-4021-01-C492 Class El Primero’s case that is made of premium grade stainless steel has a diameter of 40mm and approximately 15mm thick, which is not too large for ladies who are going for this kind of timepiece as an oversized wrist accessory. The bracelet that is made of genuine alligator leather is supple and supportive, measures around 22mm wide, and it comes equipped with an adjustable deployant folding clasp for convenient fitting.
Allowing you to take a good look at its finely executed Zenith’s caliber El Primero 4021H inside, the back of the case features sapphire display, while its Silver dial is open worked at the 10 o’clocks position to shows you the heart of the movement.

Even without that open work, this Class El Primero Zenith 03.1125.691/02.C490 watch’s dial itself is gorgeous. Bright in Silvered White and has a nice layout arrangement which despite of its complication, still maintains a nice degree of read-ability.

Overall, the Zenith 03-0510-4021-01-C492 watch is indeed stylish. Its brushed and polished case, combined with the Black alligator-skin strap and the gorgeous Silvered White dial lends a lovely versatility that allowing you to wear the watch for either casual or formal occasion. Its ergonomic design makes it comfortable to wear, while its 50 m water resistance simply makes the timepiece even more practical to be worn daily. Furthermore, its COSC certified El Primero 4021H movement is also remarkable as well.
Anyway, for all of its quality offerings, this men’s Stainless steel on Black crocs leather Silvered dial Zenith El-Primero T Open 03.0510.4021/01.C492 chronograph automatic watch is reasonably priced with an original manufacturer suggested retail price of $8,100.00.
Watch Specification
Brand: | Zenith |
Collection: | Class El Primero |
Series: | T Open |
Model number: | 03.0510.4021/01.C492 Ref. 03-0510-4021-01-C492. also referred as 030510402101C492. |
Watch style: | Gents, Dress, Elegant, Contemporary |
Display type: | Analog |
Movement: | Swiss automatic Zenith El Primero 4021H. In house, Le Locle mechanical manufacture calibre El Primero 4021 H that is developed, built and workshop-crafted by Zenith. Swiss made, automatic self-winding mechanical movement. Chronometer grade certified by C.O.S.C. |
Functions: | Hour, Minute, Small Seconds, Chronograph, Power Reserve |
Dial: | Silvered Partially open worked Silvered White dial that shows the “heart” of the El Primero caliber at 10 o’clock. Rhodium faceted hour and minute hands. 18kt rose gold power reserve hand, with black nickel coating. Rhodium hand-mounted applique, ten Arabic numeral and two arrows hour markers. painted Black minute markers around the outer rim. 30-minute counter at 3. Power reserve indicator at 6. small seconds with a 3-branched hand at 9. |
Window: | Sapphire Crystal scratch resistant, anti-reflective coated on both sides. |
Case: | Stainless Steel Round, Ø 40 mm w/o crown, 47 mm lug to lug, ± 15 mm thick. high polished with satin finished horn. |
Bezel: | Stainless Steel stationary bezel. mirror polished. |
Caseback: | See-thru stainless steel with sapphire display. secured with 8 screws, engraved. |
Crown: | Non-screw crown Stainless Steel. fluted. logoed. with two steel pushers alongside. |
Bracelet: | Alligator / Crocodile leather Black, textured pattern. Handmade, features silky Alzavel calfskin and tonal stitching. ± 22 mm wide. men standard length. |
Clasp: | Deployant folding clasp Stainless Steel, stamped, adjustable. |
Notable Features: | Calendar Chronograph Open-worked dial Transparent exhibition caseback |
Water resistant: | 50 m (5 ATM / 165 feet) daily wear, capable to withstand splashes of water and very light rain. |
Additional info: | - |
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