Speake-Marin · J-Class

Strap for Serpent Calendar

Takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width22 mm
Case diameter42 mm
ReferencePIC.10006-04
FamilyJ-Class
MovementVaucher caliber VMF 3002 / H,M,SC,D hours, minutes, seconds | date
CaseTitanium

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.10006-04

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The J-Class PIC.10006-04, seen from the bench

The Speake-Marin J-Class features the Vaucher VMF 3002 caliber with hour, minute, second, and date functions. The automatic movement ensures the precision of standard time indications. The case features 22mm lugs for the strap.

Frequently asked questions

What lug width does the Speake-Marin J-Class PIC.10006-04 have?

The Speake-Marin J-Class PIC.10006-04 features a 22-millimetre lug width. This measurement represents the distance between the two vertical lugs (pins) that protrude from the case. You can verify it using a digital calliper. A 22mm lug width is particularly versatile, providing access to an extensive range of premium artisanal straps.

Which strap is most suitable for the Speake-Marin J-Class PIC.10006-04?

For the PIC.10006-04 we primarily recommend Tuscan leather with vegetable tanning in Moro Brown tone, which creates dramatic contrast with the titanium case. Alternatively, ebony alligator offers timeless formal elegance with natural grain texture, whilst NATO straps in navy blue or military green emphasise the British spirit of the design. The choice depends on intended use and personal colour preference.

How do I change the strap on the Speake-Marin J-Class PIC.10006-04?

Strap replacement involves removing the horizontal spring bars (pins) that traverse the lugs. Use a dedicated spring bar tool to exert controlled pressure on the pin, retracting it from its housing. Remove the old strap, insert the new one by aligning it perfectly with the lug holes, and reinsert the pin until it locks into place. This operation requires delicacy to avoid scratching the titanium case.

Can I use third-party aftermarket straps on the PIC.10006-04?

Yes, any strap with a compatible 22-millimetre lug width is installable on the PIC.10006-04. We recommend artisanal straps that guarantee construction quality consistent with the refinement of the timepiece: Tuscan vegetable-tanned leather, alligator, shell cordovan and premium technical fabrics. Avoid straps with cheap synthetic finishes, which would create aesthetic discord with the value of the movement and titanium case.

How long does a leather strap last on a watch like the PIC.10006-04?

A premium leather strap, subject to moderate daily use (5-6 days weekly), has a lifespan of 3-5 years. Tuscan vegetable-tanned leather develops a noble patina over time, acquiring chromatic character and grain texture. Alligator offers greater durability (5-7 years) due to its natural scaly structure. A deployante (butterfly clasp) significantly improves longevity by reducing stress on the lugs. Proper drying after moisture exposure extends the strap's useful life considerably.

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