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Tudor — Black Bay 54

Also known as: Black Bay 54, Lagoon Blue

DocumentedSupported by at least one credible specialist source.

Record status

Documented family · partial

Period

2025–2026 (sampled references)

Maker / issuer

Tudor

Black Bay 54 is a wristwatch family made by Tudor. Production years recorded for the sampled references run from 2025 to 2026. Recorded movements are Tudor caliber MT5400, with functions including hours, minutes, seconds and chronometer.

The sampled references record case diameters of 37 mm, heights of 11.24 mm, cases in stainless steel and water resistance of 200 m. Reference examples: ref. M79000-0001 (Black Bay Fifty-Four Stainless Steel / Lagoon Blue / Bracelet; 2025–2026; 37.00 mm); ref. M79000B-0001 (Black Bay Fifty-Four Stainless Steel / Blue / Bracelet; 2026; 37.00 mm); ref. M79000B-0002 (Black Bay Fifty-Four Stainless Steel / Blue / Rubber; 2026; 37.00 mm).

Evidence at a glance

Linked sources
2
Photograph views
3
Catalogue references
4

Counts describe this entry’s documentation, not authenticity, rarity or completeness. Photographs may show one specimen; check each caption and licence.

Historical context

Among the 3 WatchBase references sampled for this entry, the earliest recorded production year is 2025 and the latest is 2026.

Physical characteristics

Bezel
Rotating, 0-60 (Dive)
Crystal
Sapphire
Case back
Closed
Case shape
Round
Case height
11.24 mm
Case materials recorded
Stainless Steel
Case diameter (sampled references)
37 mm

Technical characteristics

Functions recorded
Hours, Minutes, Seconds, Chronometer
Movements recorded
Tudor caliber MT5400
Production years recorded
2025–2026
Water resistance recorded
200 m

Design

Hands
Proprietary
Hour markers
Stick / Dot
Nicknames recorded
Lagoon Blue
Dial colours recorded
Blue

Identification

How to identify
The reference number, usually found on the case back, between the lugs or on papers, ties a watch to one of these configurations; movement calibre, case material and dial together separate references within the family.
Family as listed
Black Bay 54
References sampled
M79000-0001 — Black Bay Fifty-Four Stainless Steel / Lagoon Blue / Bracelet M79000B-0001 — Black Bay Fifty-Four Stainless Steel / Blue / Bracelet M79000B-0002 — Black Bay Fifty-Four Stainless Steel / Blue / Rubber
Distinguishing features
Reference number, movement calibre, case material and dial colour together
Representative reference
M79000-0001(aka: 79000-0001)
Source note
All figures follow WatchBase and describe only the references sampled here; they have not been checked against the manufacturer's archive. WatchBase, an online database of watch references, lists 5 references under this family name; this entry summarises 3 of them, chosen across that list. The reference list, calibres and case specifications summarised above come from WatchBase; the manufacturer's own archive or a printed reference work should be consulted before treating any detail as definitive. That figure is not necessarily the family's introduction date: earlier references may exist outside the sample, and WatchBase coverage of discontinued models is uneven.

Catalogue references

Varieties

  • Ref. M79000-0001 — Black Bay Fifty-Four Stainless Steel / Lagoon Blue / Bracelet

    produced 2025–2026; Tudor caliber MT5400; 37.00 mm stainless steel; Blue dial. Source: WatchBase.

  • Ref. M79000B-0001 — Black Bay Fifty-Four Stainless Steel / Blue / Bracelet

    produced 2026; Tudor caliber MT5400; 37.00 mm stainless steel; Blue dial. Source: WatchBase.

  • Ref. M79000B-0002 — Black Bay Fifty-Four Stainless Steel / Blue / Rubber

    produced 2026; Tudor caliber MT5400; 37.00 mm stainless steel; Blue dial. Source: WatchBase.

Research required

  • Research Required: confirm the family's introduction date, full reference list and production span against the manufacturer's archive or a printed reference; WatchBase figures cover only the sampled references.
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