LONGLUX 8020P Automatic Watch – Open-Heart Dial, Leather Strap, 41mm, 30M

LONGLUX 8020P Automatic Watch – Open-Heart Dial, Leather Strap, 41mm, 30M

The LONGLUX 8020P is a 41mm automatic dress watch with an open-heart dial — two movement windows cut into the dial face exposing the running gear train, visible through the crystal while the watch operates. Automatic self-winding movement, 21 jewels, 21,600 vph. Hardlex reinforced glass crystal. Crocodile-texture leather strap with pin buckle. 14–15mm thick, 68g, 30M water resistance. Available in rose-gold or gold-tone case with white, gold, and black dial options.

Key Specifications

Open-Heart Dial

The 8020P has two cut-out windows in the dial face — one near the 8–9 o’clock position and one above 6 o’clock — exposing portions of the movement gear train. The oscillating gear and escapement wheel are visible through these windows as the watch runs, giving a view of mechanical motion from the front without a full skeleton layout.

The remainder of the dial uses a sunburst-textured centre with triangular applied hour markers, small Roman numeral details around the outer track, and rhinestone-style accent markers at selected positions. The combination of open-heart movement windows, rhinestone accents, and polished case gives the 8020P a decorative dress watch character positioned more towards formal styling than the 8025P’s cleaner business layout.

Automatic Movement

Chinese domestic automatic self-winding movement, 21 jewels, 21,600 vph, approximately 40-hour power reserve. Self-winding via wrist movement; manual winding via the crown. No battery required. Entry-level automatic caliber in the budget dress watch segment — expect ±30–60 seconds per day accuracy. If unworn for more than 40 hours, wind manually before wearing.

Crystal and Case

Hardlex reinforced mineral glass crystal — more scratch-resistant than standard mineral glass, not equivalent to sapphire. Alloy (zinc alloy) case construction in rose-gold or gold PVD finish. Polished surfaces throughout. Total weight 68g with leather strap — lighter than a stainless steel case watch of equivalent diameter.

30M Water Resistance

Rated 30M / 3ATM — splash and rain protection only. Not suitable for swimming, showering, hot water, or steam. Remove before any water activity beyond brief hand contact.

Dial and Case Variants

White dial / rose-gold case / brown strap — the most delicate and vintage-leaning combination. Warm rose-gold tones against the white dial.

White dial / gold case / brown strap — same clean white dial with a warmer yellow-gold case.

Gold dial / gold case / brown strap — full warm-tone configuration; the most cohesive and vintage.

Black dial / rose-gold case / black strap — high contrast; formal character.

Black dial / gold case / black strap — strong contrast with the most traditional gold-and-black dress watch appearance.

Additional two-tone variants (medium gold/white, medium gold/black) share the same specifications.

How the 8020P Compares to the 8025P

Both are LONGLUX alloy-case automatic dress watches on leather straps with 30M water resistance and the same movement platform. The 8020P adds open-heart movement windows and rhinestone dial accents — more decorative and formal. The 8025P has a standard closed dial with date display at 3 o’clock — more practical for daily wear. Choose the 8020P for the visible movement aesthetic; choose the LONGLUX 8025P if the date display and cleaner layout are preferred.

For buyers who want a higher specification automatic dress watch, see the OUPINKE watches collection for sapphire crystal, stainless steel, and NH36A movement options.

FAQ

What is the open-heart display? Two windows cut into the dial at approximately 8–9 o’clock and above 6 o’clock, exposing parts of the movement gear train. The mechanism is visible and in motion while the watch is running.

Is the crystal sapphire? No — Hardlex reinforced mineral glass. More scratch-resistant than standard mineral glass but will mark under hard contact with metal or stone.

Is the case stainless steel? No — alloy (zinc alloy) in rose-gold or gold PVD finish. Lighter than stainless steel; the PVD finish may show wear over extended daily use.

Can I swim with this watch? No — 30M / 3ATM is splash protection only. Not suitable for swimming, showering, or submersion.

How accurate is the movement? Entry-level Chinese automatics in this class typically run within ±30–60 seconds per day. Wider tolerance than Japanese or Swiss calibers. Wind manually if the watch has been unworn for more than 40 hours.

What is the difference between the 8020P and 8025P? The 8020P has open-heart movement windows and rhinestone dial accents — more decorative. The 8025P has a standard closed dial with a date display. Both use the same case, movement, and strap platform.