Oris · Divers 65

Strap for Divers Sixty-Five 38 Calibre 400 Stainless Steel / Green / Bracelet

Takes 19 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width19 mm
Case diameter38 mm
Reference01 400 7774 4057-07 8 19 18
FamilyDivers 65
MovementOris caliber Oris 400 ND Hours, Minutes, Seconds | Date
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

The Divers 65 01 400 7774 4057-07 8 19 18, seen from the bench

The Oris Divers 65 ref. 01 400 7774 4057-07 8 19 18 is a 38mm stainless steel AISI 316L sports watch featuring the automatic caliber Oris 400 ND with Nivachron hairspring and 120-hour power reserve. The unidirectional bezel displays a white tachymetric scale on black, while the screw-down crown at 3 o'clock ensures 300-meter water resistance. The 19mm lug width accommodates various strap options, and the approximately 12mm case thickness allows comfortable wear under shirt cuffs.

Frequently asked questions

What is the exact lug width of the Oris Divers 65 01 400 7774 4057-07 8 19 18?

The lug width is 19.00 millimetres. This standard allows the installation of artisanal straps that respect the proportions of the 38mm case without creating visual imbalance. To verify the measurement, use a digital calliper to measure the internal distance between the two lugs of the case.

What is the best strap for the Oris Divers 65?

The choice depends on the intended use. For formal environments, we recommend dark brown alligator or vegetable-tanned calf leather. For tactical versatility, a NATO strap in high-density polyamide. For authentic aquatic use, vulcanised rubber with quilted texture. Each material transforms the personality of the watch while maintaining coherence with its instrumental design.

How do you change the strap on this case?

The Divers 65 features straight (non-curved) 19mm lugs. Remove the previous strap by extracting the spring bar with a dedicated spring bar tool, then insert the new strap by threading the spring bar into the respective slots of the case and strap lugs. Verify that the spring bar is centred and that the strap lies flat.

Can I fit an aftermarket strap on this model?

Yes, provided the lug width is precisely 19mm. Artisanal quality straps from specialised suppliers fit perfectly, allowing you to personalise the watch according to your usage context. Choose straps with double-wrap steel lugs (deployante) for maximum durability.

How long does a natural leather strap last on a diving watch?

Durability depends on the material and exposure to water. Vegetable-tanned leather frequently exposed to salt water has an average lifespan of 18-24 months. Reduce daily water exposure to extend strap life, rinsing with fresh water after immersions. Alligator and shell cordovan offer superior longevity due to fibre density.

The next step

The right strap isn't chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only