OBLVLO EM-ST Skeleton Automatic Watch — Carbon Fibre Tonneau, OBL.1910, 42×50mm, 60H Reserve

OBLVLO EM-ST Skeleton Automatic Watch — Carbon Fibre Tonneau, OBL.1910, 42×50mm, 60H Reserve

The OBLVLO EM-ST is a 42×50mm carbon fibre and titanium tonneau skeleton automatic watch — OBLVLO’s OBL.1910 caliber with 60-hour power reserve and visible rotor, floating skeleton dial with exposed bridges and screws, eco-luminous skeleton hands and markers, sapphire crystal front and back, rubber strap with push-button clasp, 5ATM water resistance, 135g. Six colour variants.

Key Specifications

Variants — Six Configurations

EM-ST-CBB: Carbon-fibre weave case / black strap — the most tool-watch assertive.

EM-ST-CBW: Carbon-fibre case / white strap — clean monochrome tone.

EM-ST-CBR: Carbon-fibre case / red strap — sport-inspired accent, the most vivid.

EM-ST-BBB: Black case / black strap — stealth matte version, full black-out.

EM-ST-PPB: Rose gold case / black strap — the most formally contrasted.

EM-ST-YBB: Silver case / black strap — two-tone executive character.

OBL.1910 — OBLVLO’s Designated Caliber

The OBL.1910 is OBLVLO’s model designation for the automatic movement used in the EM-ST — automatic self-winding with a 60-hour power reserve. The 60-hour reserve is notably generous — it means the watch remains running for two and a half days off the wrist, meaning a watch removed Friday evening will still be running Monday morning without needing restart. Most automatic movements at this price range (Miyota 8215, NH35) offer 42 hours.

The movement is visible through both the open skeleton dial from the front and the sapphire caseback from the rear — the rotor is presented in full motion through the exhibition back.

Carbon Fibre and Titanium Case

The EM-ST uses a carbon fibre composite for the main case body with a titanium frame — two materials associated with high-performance engineering. Carbon fibre creates the distinctive woven texture visible under the crystal and contributes to the case’s low weight relative to its 42×50mm size. The titanium frame provides structural rigidity and corrosion resistance.

At 135g the EM-ST is substantial but not heavy for its 42×50mm footprint — the carbon and titanium construction keeps the weight below what the case dimensions suggest.

Tonneau Case Architecture

The tonneau (barrel) case shape has curved sides that taper inward at the 12 and 6 positions — a shape between round and rectangular. At 42×50mm the EM-ST’s tonneau creates an oval wrist footprint rather than the circular footprint of a round 42mm case. The 50mm measurement is the lug-to-lug equivalent — the full vertical length of the case from top to bottom lug.

The exposed bezel screws are structural and functional, anchoring the bezel to the case and contributing to the industrial, mechanical character.

Skeleton Dial — Floating Architecture

The open skeleton dial removes most of the traditional dial plate, leaving only the structural bridges, movement components and hour markers visible. The “floating” character comes from the lack of a solid backing — the movement is visible beneath the skeleton layers, creating visual depth when viewed from the front. The layered bridges catch light at different angles as the viewing position changes.

5ATM Water Resistance

5ATM (50m) is suitable for swimming and rain. Not rated for diving or prolonged submersion. Avoid exposing the push-button clasp to water pressure while pressed.

Who Is the OBLVLO EM-ST For?

The EM-ST is built for:

• Carbon fibre watch buyers who want the woven composite case construction at this price — carbon fibre at 42×50mm is unusual below $500
• 60-hour power reserve buyers who want the extended reserve over the standard 38–42 hour automatics
• Tonneau skeleton buyers who want the barrel case shape with open-worked movement architecture
• Red or rose gold variant buyers who want the most vivid colour statement in the OBLVLO range

How It Compares

vs. OBLVLO Rotor Automatic Skeleton — The Rotor model features the kinetic rotor displayed on the dial face rather than hidden in the caseback. The EM-ST keeps the rotor in the caseback and presents the skeleton bridges on the front. Both are OBLVLO skeleton automatics — different dial characters.

vs. OBLVLO JM-Dragon Skeleton — The Dragon model adds a sculpted artistic motif over the mechanical skeleton. The EM-ST is the pure engineering aesthetic without figurative decoration. Choose Dragon for the artistic statement; choose EM-ST for the motorsport technical character.

vs. Pagani Design 1750 Carbon Fibre — Both use carbon fibre construction at similar prices. Pagani Design uses the Miyota NH35 movement; OBLVLO uses the OBL.1910 with 60-hour reserve. Different case shapes — Pagani is round, OBLVLO is tonneau.

More from Jewelry Addicts

• OBLVLO Rotor Automatic Skeleton — kinetic rotor dial alternative
• OBLVLO JM-Dragon Skeleton — artistic motif alternative
• OBLVLO Engine Starship — engine-themed skeleton alternative
• OBLVLO Watches — full OBLVLO range