Technical Archive

Omega
Aqua Terra 220.10.38.20.13.003— lug 19mm

Omega Aqua Terra 220.10.38.20.13.003: 19mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Seamaster Aqua Terra 150M Master Chronometer 38 Stainless Steel / Terracotta / Bracelet

Artisanal Note

"This model requires a precise 19mm lug width to preserve the original sartorial balance."

Technical Specifications

Omega 220.10.38.20.13.003
Lug Width
19 mm

The essential strap measurement.

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Reference

220.10.38.20.13.003

Movement

Omega caliber 8800 Hours, Minutes, Seconds | Date | Chronometer, Co-Axial Escapement

The Heritage

The Omega Seamaster Aqua Terra 150M Master Chronometer model 220.10.38.20.13.003 features a 38mm stainless steel case with a terracotta dial and integrated bracelet. It is powered by the caliber 8800 Co-Axial movement oscillating at 4Hz with METAS Master Chronometer certification, guaranteeing magnetic resistance up to 15,000 Gauss and accuracy in extreme conditions. The lug width is 19mm, a specification critical for proper strap compatibility and structural integrity.

FAQ

What is the lug width of the Omega Aqua Terra 220.10.38.20.13.003?

The lug width is 19mm. This width is specific to the 38mm Aqua Terra model and is crucial to ensure correct compatibility: an 18mm or 20mm strap would result in premature wear of the attachment pins and undesired structural movement. Always measure with a digital caliper between the pins, from one side to the other of the internal passage.

What strap material is most suitable for the Omega Aqua Terra 220.10.38.20.13.003?

For this sporty-elegant timepiece we recommend alligator (natural patina and superior elasticity), shell cordovan (massive density and decade-long longevity), or vegetable-tanned calf (natural breathability and conscious replacement every 4-5 years). For frequent marine environments, FKM rubber or NATO ensures practical waterproofness without functional compromises.

How do you change the strap on the Omega Aqua Terra 220.10.38.20.13.003?

The attachment pins are removable. Use a spring bar tool (specific lever for pins), position it in the lateral holes of the case and gently lift the pin inward, sliding the original strap outward. Repeat on the other side. Insert the pins into the new 19mm strap and reposition them in the case until the locking click. Verify lateral movement before wearing.

Are there aftermarket straps compatible with the 220.10.38.20.13.003?

Yes, you can find 19mm straps ready for shipment online, customizable in sizes, initials and stitching thread. For a bespoke experience with personal leather selection and 18-month warranty, contact Casati Milano atelier for dedicated consultation via WhatsApp.

What is the average lifespan of a leather strap for this Omega?

A well-maintained alligator or cordovan lasts 7-12 years with ordinary care (brushing, protection from exhausting humidity). A vegetable-tanned calf has a conscious replacement cycle of 4-5 years. Lifespan depends on wear frequency, environmental exposure and conditioning. A premium strap does not age by deteriorating, but develops natural patina that increases aesthetic value.

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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The atelier's website: casatimilano.com