Technical Archive

SevenFriday
P-Series P1/01— lug 28mm

SevenFriday P-Series P1/01: 28mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Artisanal Note

"This model requires a precise 28mm lug width to preserve the original sartorial balance."

Lug Width

28 mm

The essential strap measurement.

Browse 28mm straps →

Reference

P1/01

Movement

Miyota caliber 82S7 Additional 24 Hour Hand (fixed), Small Seconds, Hours, Minutes

The Heritage

The SevenFriday P1/01 is part of the Swiss brand's P-Series. It is equipped with the automatic Miyota 82S7 caliber featuring hour, minute, small seconds and a fixed 24-hour hand. The case has 28mm lugs and the distinctive industrial design characteristic of the collection.

FAQ

What is the exact lug width of the SevenFriday P1/01?

The SevenFriday P1/01 features a proprietary 28-millimetre lug width, specific to the P-Series collection. This dimension was engineered to maintain correct visual proportions relative to the 47-millimetre case diameter. The measurement is taken internally between the two lugs of the case.

Which strap material pairs best with the P1/01?

For the industrial aesthetic of the P1/01, we recommend high-quality alligator leather, vegetable-tanned calf, or dense-weave NATO straps. Alligator offers durability and natural patina development; vegetable-tanned calf develops a stratified, evolving patina; NATO imparts a minimalist tactical character. Rubber is the most pragmatic choice for intensive daily use.

How do you change the strap on a SevenFriday P1/01?

To change the P1/01 strap, use a dedicated spring bar tool to extract the lug pins. Position the tool above the pin, gently compress the internal spring mechanism, then remove the old strap. Align the new strap's holes with the lugs and compress the pin until locked. Never force: precision is essential with 28-millimetre attachments.

Are there compatible aftermarket straps available for the P1/01?

Yes, although 28-millimetre lugs are proprietary, bespoke aftermarket straps are specifically crafted for this measurement. Always verify that the strap is cut to the exact 28-millimetre width and compatible with the model's attachment system. milanostraps.it curates a selection of 28mm straps ready for dispatch.

What is the lifespan of a natural leather strap on the P1/01?

A quality natural leather strap (alligatore, vegetable-tanned calf) typically lasts 3-5 years with regular daily wear. Longevity depends on sun exposure, humidity, frequency of use, and maintenance practices. Natural patina development over time does not compromise functionality; it enhances the watch's character.