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Rolex Explorer II vs Tudor Black Bay Chrono

Ref. 216570 vs Ref. M79360N-0001

The Rolex Explorer II and Tudor Black Bay Chrono represent one of the most compelling matchups in luxury watches — a sibling rivalry between two brands under the same parent company. With the Rolex Explorer II priced at ~$12,000 (market value) and the Tudor Black Bay Chrono at $5,825, the price gap raises a critical question: does the extra investment in the pricier option deliver proportional value? We break down the specs, market performance, and flip potential to help you decide.

Price Comparison

Rolex

Explorer II

RetailDiscontinued
Market Avg$12,000
Market Range$10,500 $13,500
Premium+31.1%
Flip Score8/10 – Excellent

Tudor

Black Bay Chrono

Retail$5,825
Market Avg$5,534
Market Range$4,870 $6,198
Premium-5.0%
Flip Score3/10 – Moderate

The Rolex Explorer II is priced at ~$12,000 (market value) while the Tudor Black Bay Chrono comes in at $5,825. On the secondary market, the gap widens: the Rolex Explorer II trades around $12,000 and the Tudor Black Bay Chrono around $5,534, a difference of $6,466 favoring the Tudor Black Bay Chrono. This watch trades at 31% above retail on the secondary market and is trending upward — a strong indicator of collector demand. The Tudor Black Bay Chrono shows a more modest market premium of -5.0%, holding steady. For investors, the Rolex Explorer II edges ahead with a flip potential score of 8/10 compared to 3/10.

Specifications

SpecificationRolex Explorer IITudor Black Bay Chrono
Case Diameter42mm41mm
Case Thickness12.5mm14.4mm
Case MaterialOystersteelStainless steel
BezelOystersteel, fixed 24-hour graduated bezelFixed bezel with tachymeter scale in black
CrystalSapphire with Cyclops lensSapphire crystal
Water Resistance100m / 330ft200m / 660ft
MovementRolex calibre 3187Tudor Calibre MT5813
Movement TypeAutomaticAutomatic chronograph
Power Reserve48 hours70 hours
Bracelet/StrapOyster, three-piece solid linksStainless steel with riveted-style links
ClaspOysterclasp with Easylink 5mm comfort extensionFolding clasp with safety catch
Lug Width21mm22mm

Key specification differences stand out between these two: The Tudor Black Bay Chrono leads in water resistance (200m / 660ft vs. 100m / 330ft), and the Tudor Black Bay Chrono offers longer power reserve at 70 hours, and the Rolex Explorer II uses Oystersteel while the Tudor Black Bay Chrono opts for Stainless steel. With 8 notable spec differences in total, the choice depends on which features matter most to your use case.

Value Per Feature

Per millimeter of case diameter, the Rolex Explorer II costs $286 versus $135 for the Tudor Black Bay Chrono. For water resistance, the Tudor Black Bay Chrono delivers better value per meter of depth rating. The Tudor Black Bay Chrono offers more power reserve per dollar spent.

Which Should You Buy?

Choose the Rolex Explorer II if you value a lower entry price, stronger flip potential, better value retention. Go with the Tudor Black Bay Chrono if you prioritize timing functionality. For pure investment potential, the Rolex Explorer II has the edge based on current market data.

Frequently Asked Questions

Which is more affordable, the Rolex Explorer II or the Tudor Black Bay Chrono?

The Tudor Black Bay Chrono is more accessible, priced at $5,825 compared to ~$12,000 (market value).

Which watch is a better investment?

Based on current market data, the Rolex Explorer II has a higher flip potential score of 8/10, suggesting stronger investment returns. However, watch values can fluctuate based on market conditions.

Which holds its value better on the secondary market?

The Rolex Explorer II currently trades at 31.1% above retail, indicating strong value retention on the pre-owned market.

How do the Rolex Explorer II and Tudor Black Bay Chrono compare in size?

The Rolex Explorer II measures 42mm in diameter and 12.5mm thick, while the Tudor Black Bay Chrono is 41mm by 14.4mm. Water resistance differs too: 100m / 330ft versus 200m / 660ft.

What movements do these watches use?

The Rolex Explorer II uses the Rolex calibre 3187 with 48 hours power reserve, while the Tudor Black Bay Chrono runs on the Tudor Calibre MT5813 offering 70 hours of power reserve.

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