The Zenith El Primero 36,000 VpH (Reference: 03.2040.400/21.M2040) is a legendary Swiss luxury chronograph watch featuring a 42mm stainless steel case, a sleek black sunray dial, and a matching stainless steel bracelet.

• The Dial: A crisp, classic black dial layout featuring silver-ringed sub-dials (chronograph registers) at 3, 6, and 9 o'clock. A quick-set date window sits cleanly at the 6 o'clock position. 

• The Highlights: Rhodium-plated faceted hands and hour markers are treated with Super-LumiNova SLN C1 for low-light legibility, while a bright red tip on the central chronograph seconds hand provides a sharp pop of color. 

• The Steel Bracelet: The "M2040" suffix indicates that the watch comes factory-equipped on an original brushed and polished stainless steel link bracelet with a secure folding clasp.

• The Caliber: It runs on the world-renowned integrated high-beat El Primero Caliber 400 automatic movement. 

• High-Frequency Sweep: Operating at 36,000 vibrations per hour (5 Hz), the movement divides each second into ten precise parts, resulting in an incredibly smooth, sweeping motion of the chronograph seconds hand.

• Architecture & Energy: It utilizes a premium column-wheel command system for tactile pusher feedback and boasts a power reserve of approximately 50 hours.

• Case Diameter: 42.0 mm

• Case Thickness: 12.75 mm

• Lug Width (Band Size): 21.0 mm

• Water Resistance: 100 meters (330 feet)—suitable for surface swimming or snorkeling

• Crystal: Scratch-resistant sapphire crystal with anti-reflective treatment on both sides