OBLVLO AM-PW Dual Calendar Automatic Watch — Cal.1850, 42mm, Guilloché, Mother-of-Pearl Sub-Dials

OBLVLO AM-PW Dual Calendar Automatic Watch — Cal.1850, 42mm, Guilloché, Mother-of-Pearl Sub-Dials

The OBLVLO AM-PW is a 42mm Cal.1850 automatic full calendar dress watch — month sub-dial at 12 o’clock with mother-of-pearl surface, day/date window at 3 o’clock, 24-hour sub-dial at 6 o’clock with mother-of-pearl surface, oil-pressed guilloché main dial with diamond-grid texture, blue steel screws on chapter ring, domed synthesised sapphire crystal, 316L stainless steel case at 12mm, exhibition caseback, crocodile-embossed calf leather strap with butterfly deployment clasp, 5ATM water resistance, ~95g. Five variants across rose gold and silver cases.

Key Specifications

Variants — Five Configurations

AM-PW-PRWL: Rose gold case / white guilloché dial / brown strap AM-PW-PWWL: Silver case / white guilloché dial / black strap AM-PW-YWBL: Rose gold case / red guilloché dial / brown strap AM-PW-YLLL: Silver case / blue guilloché dial / blue strap AM-PW-YBBL: Silver case / black guilloché dial / black strap

The rose gold variants (PRWL and YWBL) use a warm brown strap coordinated to the case tone. The silver variants use matched or contrasting black or blue leather straps.

Cal.1850 — Full Calendar Movement

The Cal.1850 is OBLVLO’s designation for the 24-jewel automatic caliber powering the AM-PW — 21,600 vph, automatic self-winding, driving three simultaneous calendar displays alongside the time. The caseback engraving reads “CAL. 1850 · OBLVLO · TWENTY-FOUR JEWELS · AUTOMATIC · 5 BAR · STAINLESS STEEL” — the movement and specifications are visible through the exhibition caseback.

The three calendar functions are: month (12-position sub-dial), day and date (combined window at 3 o’clock), and 24-hour AM/PM indicator (6-position sub-dial). This gives the AM-PW the same calendar depth as the BERNY AM050M Miyota 9110 and the BERNY AM7042M Seagull ST1652 at a comparable price.

Guilloché Dial with Mother-of-Pearl Sub-Dials

The main dial uses oil-pressed guilloché technique — a diamond-grid engraving pattern creating an interlocking three-dimensional texture that scatters light differently at each viewing angle. The texture has genuine depth, creating a shifting tonal surface that flat photography does not fully convey.

The two circular sub-dials (month at 12, 24-hour at 6) use natural mother-of-pearl surfaces — the iridescent quality of MOP creates a visual contrast against the guilloché main dial, with the sub-dial surfaces appearing to glow with a different internal light quality depending on viewing angle and ambient lighting.

Blue steel screws on the chapter ring add a precise accent — the blue oxidation of the screw heads creates a colour counterpoint to the silver case and marker tones.

Domed Sapphire Crystal

The domed sapphire is synthesised (laboratory-created) rather than natural — the same material as all sapphire watch crystals. The dome profile curves outward, creating the vintage dress watch depth of field and the characteristic light refraction arc around the crystal edge. Sapphire at Mohs 9 provides strong scratch resistance regardless of origin.

128 Polishing Steps

The listing notes 128 individual polishing steps on the 316L steel case — creating alternating satin-brushed flanks and mirror-polished bevelled edges. The result is a case with surface variation: the flat case sides absorb light in a matte grey, while the bevelled transitions and lug chamfers reflect in bright mirror lines. This is the finishing approach of dress watches at significantly higher price points.

AM-PW vs AM7042M — Two Multi-Calendar Automatics

Both are available at Jewelry Addicts — full calendar automatics at comparable prices:

Choose AM-PW for the guilloché mother-of-pearl dial, domed sapphire crystal, butterfly clasp and the cleaner formal dial composition. Choose AM7042M for the Seagull ST1652 in-house movement, tachymeter scale and the more ornate baroque dial character.

Who Is the OBLVLO AM-PW For?

The AM-PW is built for:

• Full calendar automatic dress watch buyers who want month + day/date + 24-hour on a guilloché dial at this price
• Mother-of-pearl sub-dial buyers who want the iridescent MOP surface on the calendar registers
• Rose gold dress watch buyers — the PRWL and YWBL rose gold case variants are among the most formally warm calendar watch options available at Jewelry Addicts
• Butterfly clasp buyers who want the double-push deployment clasp on a leather strap automatic dress watch

How It Compares

vs. BERNY AM7042M Seagull ST1652 — See comparison table above.

vs. BERNY 2262M Miyota 6P20 Moon Phase — BERNY uses quartz with true moon phase + day + date at 40mm. OBLVLO uses automatic Cal.1850 with month + day/date + 24H at 42mm. Moon phase vs month display — quartz vs automatic.

vs. LOBINNI 16003 Seagull ST16K3-3A — LOBINNI uses Seagull with moon phase + world time + 5 functions. OBLVLO uses Cal.1850 with 3 calendar functions plus guilloché MOP dial. Choose LOBINNI for world time and moon phase; choose OBLVLO for the guilloché dial craftsmanship and domed sapphire.

More from Jewelry Addicts

• BERNY AM7042M Annual Calendar Automatic — Seagull ST1652 calendar alternative
• BERNY 2262M Moon Phase — moon phase quartz alternative
• LOBINNI 16003 Moon Phase World Time — Seagull moon phase alternative
• OBLVLO Watches — full OBLVLO range