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Top-tier supplier movement · caliber Universal Geneve Cal. UG 7750: ETA 7750 base, column-wheel, 28,800bph, 42h PR; used in Diver Chrono (300m); heavy-duty version adapted for dive watch housing · 42h power reserve
Large case: suits wrists 7 in+ (18 cm+)
44 mm case. A bold, statement-size wear. Best suited to larger wrists where the case sits flush.

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Authentication

The dive bezel must rotate counterclockwise only with a firm ratchet at each minute mark; any bezel that slips or rotates clockwise is a safety fault.

Known issues in the market
  • The dive bezel ratchet must be firm at each minute mark; a slipping ratchet is a safety issue for a dive watch.
  • The ETA 7750 in a 300m dive case; verify case gasket condition if the watch has been heavily used.
AreaWhat to checkWhat is correctRed flag
caseDive bezel unidirectional rotationRotates counterclockwise only; does not rotate clockwiseBezel rotates clockwise; ratchet worn or non-genuine
caseDive bezel ratchet firmness at each minute markFirm, positive ratchet click at each minute mark; does not slipRatchet slips between minute marks; worn or faulty ratchet mechanism
movementETA 7750 architecture through casebackETA 7750 architecture with column-wheel modification visibleNon-ETA 7750 architecture; movement discrepancy
casebackUniversal Geneve serial and referenceUG serial and reference correctly engravedMissing or incorrect engravings; non-genuine caseback
Common legitimate replacements
  • Case gaskets; replace after each dive use or every 2 years.
  • Crown; Universal Geneve OEM only.
Expert resources: Universal Geneve authorized service; pressure-test before any dive use.

Authentication guide

Last reviewed June 2026

The UG Diver Chronograph modern reissue revives the brand under current ownership with contemporary specifications. Unlike vintage UG, this is a current production piece; authentication centers on confirming it is a genuine factory piece rather than a vintage example.

Known reproduction risks

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LOW

Modern reissue UG pieces are not yet widely targeted for reproduction; the brand's low profile reduces incentive.

  • Confirm seller is an authorized dealer or that the piece has valid warranty card and box from current ownership era

Dial variants by era

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EraDescriptionIdentifiers
2022 to present (modern reissue)Sports chronograph with dive watch proportions; 300m WR; modern ETA or in-house movement.
  • "UNIVERSAL GENEVE" on dial with current logo treatment
  • Unidirectional rotating bezel
  • "300M" water resistance marking
  • Chronograph pushers at 2 and 4
  • Contemporary case finishing; modern sapphire crystal

Service part flags

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Movement

Original: Confirm caliber against current UG specification sheet; modern reissues may use La Joux-Perret or similar contemporary base.

Replacement tells
  • Movement caliber that does not match UG current specification is a service issue or fraud flag

Case back markings

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2022 to present
  • "UNIVERSAL GENEVE" current brand name and logo
  • "300M" water resistance
  • Serial number
  • "SWISS MADE"
  • Caliber designation

Movement tells

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  • Modern reissue movements are under warranty from the brand; service should be routed through UG authorized service.
  • The chronograph reset should be clean and simultaneous across all registers.
Sources: Universal Genève official site.

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