Seiko 5 Sports SRPH33K1 Flieger Black Orange Nylon Strap Men's Automatic Watch

The black Seiko 5 Sports SRPH33 on nylon: the automatic military-style field watch

Introduction

The Seiko 5 Sports SRPH33K1 is inspired by aviator watches with a black dial contrasted by orange Arabic numerals, ensuring quick time reading. The broad hands, also orange and coated with LumiBrite, provide optimal visibility, even in the dark. A day/date window is placed at 3 o'clock for practical use.

Its 39.4mm stainless steel case, covered with a hard coating, offers a good balance between robustness and comfort. It is equipped with a curved Hardlex crystal and a transparent case back revealing the automatic 4R36 movement, which features manual winding, a stop-second function, and a 41-hour power reserve.

The black nylon strap with orange lining is reminiscent of military equipment and ensures a comfortable fit. Water-resistant up to 100 meters, the SRPH33K1 combines aviation-inspired style with reliable performance for everyday use.

Case

The case of the SRPH33K1 is made of stainless steel, with a diameter of 39.4mm and a thickness of 13.2mm (lug-to-lug: 48.1mm). Seiko's Hardlex crystal protects the dial. Heat-treated, it offers superior shock resistance to standard mineral glass while being polishable. The lug width is 22 mm.

Movement

The SRPH33K1 is powered by the Seiko 4R36 automatic caliber, with a power reserve of 41 hours. This in-house caliber, made in Japan, features 24 jewels and beats at 21,600 vibrations per hour. It has hacking (stop-second) and manual winding functions.

Strap

The SRPH33K1 is equipped with a NATO-style nylon strap, secured by a pin buckle. The lug width is 22 mm.

Supplied with: Storage box, presentation pad, user manual.