A 2019 Tudor Black Bay Heritage powered by Tudor’s in-house MT5602 automatic movement. Featuring a 41mm stainless steel case, deep blue dial, and matching blue bezel insert, this reference delivers classic dive watch aesthetics with modern build quality and 70-hour power reserve. A versatile everyday diver with strong secondary market liquidity.
Why It’s Special
The Black Bay 79230B marked Tudor’s transition into fully in-house movements, elevating the model’s technical credibility. The MT5602 offers robust construction, COSC certification, and long power reserve, while the rivet-style bracelet and domed sapphire crystal retain vintage-inspired charm. This example is presented as a complete full set and remains unpolished, preserving its factory case geometry and original finishing.
Condition
Unpolished case exhibiting honest surface scratches and desk wear consistent with normal use. No major dents, gouges, or structural damage observed. Case edges remain sharp with factory brushing intact. Blue dial is clean with no visible marks; lume plots are intact and evenly coloured. Hands appear original and clean. Sapphire crystal is free of major damage. Bezel insert remains clean with light cosmetic wear only. Bracelet is full length with typical surface scratching and no significant stretch. Overall presentation is strong, original, and mechanically sound.
Performance: Recently tested on timegrapher at –10 seconds per day. Acceptable for a modern automatic diver and suitable for regular wear.
Details
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Reference: 79230B
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Movement: Tudor Automatic Cal. MT5602
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Serial: I914902 (2019)
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Case: 41 mm stainless steel
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Crystal: Sapphire
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Bracelet: Genuine Tudor rivet-style steel bracelet (fits ≈ 18 cm wrist)
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Inclusions: Full set — inner box, outer box, papers and manuals
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Provenance: Sourced from Japan and inspected in Melbourne
