LONGLUX 8020LM Skeleton Automatic Watch – Roman Numerals, Leather Strap, 41mm, 30M

LONGLUX 8020LM Skeleton Automatic Watch – Roman Numerals, Leather Strap, 41mm, 30M

The LONGLUX 8020LM is a 41mm skeleton automatic dress watch with Roman numeral hour markers and a fully open mechanical dial exposing the gear train and movement bridges. Chinese automatic self-winding movement, 21 jewels, 21,600 vph. Mineral reinforced glass crystal. Crocodile-texture leather strap with pin buckle. 14mm thick, 66g, 30M water resistance. Available in blue/white, white, rose gold, rose gold/blue, and medium gold/white.

Key Specifications

Skeleton Dial and Roman Numerals

The 8020LM uses a full skeleton layout — the dial centre is open, with the movement bridges, gear train, and jewel-style bearings visible from the front. Roman numerals are applied around the outer dial ring, providing clear hour position markers above the mechanical display. This combination of traditional Roman numerals with an open skeleton centre gives the watch a dress-watch character that sits between the purely decorative style of the 8020P (rhinestone accents, partial windows) and the more technical angular look of the 8057G.

The outer dial ring has a textured finish; the skeleton centre shows movement layers at different depths. Slim luminous hands cross the open dial. No date display — the layout reads clean.

Case Variants

Blue/white — silver-tone alloy case with blue chapter ring and blue leather strap. The most visually distinctive variant; the blue strap and dial ring create a coordinated colour story.

White — silver-tone case with white dial ring and brown or neutral leather strap. The most formal and versatile combination.

Rose gold — rose-gold PVD alloy case with brown leather strap. Warm and dress-oriented.

Rose gold/blue — rose-gold case with blue dial accents and blue leather strap. Warm case tone against cool dial accents.

Medium gold/white — yellow-gold tone case with white dial ring and matching strap.

Automatic Movement

Chinese domestic automatic, 21 jewels, 21,600 vph, approximately 40-hour power reserve. Self-winding via wrist movement; manual winding via the crown. For initial winding from fully run-down, rotate the crown approximately 25 times clockwise before wearing. No battery required. Accuracy ±30–60 seconds per day — entry-level automatic class.

Crystal and Case

Mineral reinforced glass crystal — harder than standard mineral glass, not sapphire. Will mark under hard contact with metal or stone. Alloy (zinc alloy) case construction in silver, rose-gold, or gold PVD finish — lighter than stainless steel at 66g total with strap.

30M Water Resistance

30M / 3ATM — splash and handwashing only. Not suitable for swimming, showering, hot water, or steam.

How the 8020LM Compares to Other LONGLUX Models

The 8020LM is the Roman numeral skeleton variant in the LONGLUX leather strap range — full skeleton dial (vs the 8020P’s partial open-heart windows) with a classic Roman numeral layout (vs the 8025P’s closed dial with date). All three use the same alloy case, mineral glass, and Chinese domestic automatic platform.

• For date display on a closed dial: LONGLUX 8025P
• For open-heart with rhinestone accents: LONGLUX 8020P
• For full skeleton with metal bracelet: LONGLUX 8057G
• For a step up to sapphire crystal and Miyota movement: BERNY AM093M

FAQ

Is the case stainless steel? No — alloy construction in a PVD-finished silver, rose-gold, or gold tone. Lighter than stainless steel; finish may show wear over extended daily use.

Is the crystal sapphire? No — mineral reinforced glass. More scratch-resistant than standard mineral glass but not equivalent to sapphire.

How do I wind it manually? Rotate the crown clockwise approximately 25 times from fully run-down to achieve initial wind. Regular daily wear of 8+ hours maintains the reserve through the automatic rotor.

Is it waterproof for swimming? No — 30M / 3ATM is splash and handwashing protection only. Not suitable for swimming, showering, or submersion.

Which colour variant is most versatile? White with a neutral strap pairs with the widest range of outfits. Rose gold suits warmer skin tones and casual or smart-casual wear. Blue/white is the most distinctive and works well with navy or grey outfits.

How does this differ from the BERNY AM093M skeleton watch? The AM093M uses a genuine Miyota 8N24 Japanese movement (vs Chinese domestic), sapphire crystal (vs mineral glass), stainless steel case (vs alloy), and 5ATM water resistance (vs 3ATM). The 8020LM is a more accessible entry point; the AM093M is a higher-spec alternative at roughly twice the price.