Speake-Marin · J-Class

Strap for Serpent Calendar

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter38 mm
ReferencePIC.10001-01
FamilyJ-Class
MovementVaucher caliber VMF 3002 / H,M,SC,D 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

Straps for the J-Class PIC.10001-01

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The J-Class PIC.10001-01, seen from the bench

The Speake-Marin J-Class mounts the Vaucher VMF 3002 caliber with hour, minute, second and date indication. The automatic movement is housed in a case with 20mm lugs. The watch offers the essential functions with the manufacturing quality of the Swiss Vaucher caliber.

Frequently asked questions

What is the lug width of the Speake-Marin J-Class PIC.10001-01?

The Speake-Marin J-Class PIC.10001-01 features 20mm lugs. This lug width specification ensures compatibility with a wide range of artisan aftermarket straps, providing flexibility in strap replacement without compromising mechanical durability or aesthetic proportion.

What is the best strap for the PIC.10001-01?

The ideal strap depends on usage and context. For formal wear, we recommend alligator with vegetable tanning and natural patina, which creates tactile harmony with the brushed steel case. For versatility, English calf with vegetable tanning offers chromatic ageing and practicality. For casual use, silk-satin NATO or FKM rubber guarantee practicality without constructive compromise.

How do I change the strap on the Speake-Marin J-Class?

Strap replacement requires removal of the lug spring bars. Use a dedicated strap-changing tool to extract the bars without damaging the case: position the tool in the side hole, lift gently, and remove the old strap. Insert the new strap by aligning the holes with the lugs and push the bars until they click into place. Verify that the strap is correctly aligned before wearing.

Are the aftermarket straps from milanostraps.it compatible with the PIC.10001-01?

Yes, all 20mm category straps from milanostraps.it are compatible with the Speake-Marin J-Class PIC.10001-01. We verify compatibility with 20mm lugs and offer options in alligator, calf, shell cordovan, NATO, and rubber, all customisable according to aesthetic preferences and usage context.

How long does a leather strap last on the PIC.10001-01?

Durability depends on material and usage. An alligator strap with vegetable tanning or shell cordovan lasts approximately 7-10 years with regular use, developing natural patina that enhances character over time. Vegetable-tanned calf offers 5-8 years of durability, whilst silk-satin NATO rubber lasts 10+ years due to robust structure. FKM rubber guarantees 8-12 years. Regular maintenance (post-perspiration drying, annual conditioning) significantly extends lifespan.

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.

Request an appointment →

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