Technical Archive

Oris
Frank Sinatra 01 733 7570 4061-07 5 19 98FC— lug 19mm

Oris Frank Sinatra 01 733 7570 4061-07 5 19 98FC: 19mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Frank Sinatra Date Stainless Steel / Silver

Artisanal Note

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

Technical Specifications

Oris 01 733 7570 4061-07 5 19 98FC
Lug Width
19 mm

The essential strap measurement.

Browse 19mm straps →
Reference

01 733 7570 4061-07 5 19 98FC

Movement

Oris caliber Oris 733 Hours, Minutes, Seconds | Date

The Heritage

The Oris Frank Sinatra is equipped with the Oris 733 caliber with hour, minute, second and date indication. The model features 19mm lugs and the reference 01 733 7570 4061-07 5 19 98FC. The case integrates an automatic movement with essential functions for daily use.

FAQ

What is the correct lug width for the Oris Frank Sinatra 01 733 7570 4061-07 5 19 98FC?

The lug width for the Oris Frank Sinatra 01 733 7570 4061-07 5 19 98FC is precisely 19mm. This dimension is specific to this model and differs from the standard 20mm width found on most 39mm automatic watches. Always verify this measurement with a digital calliper, measured perpendicularly between the inner points of both lugs when selecting a replacement strap.

What is the best strap for the Oris Frank Sinatra?

The ideal strap depends on context and personal preference. For formal-elegant wear, we recommend vegetable-tanned alligator or English calfskin with natural grain finish in light brown or cognac tones: these amplify the vintage 1950s aesthetic. For daily wear, a navy or dark brown cotton NATO offers durability and practicality. In leather, a red-brown cordovan introduces sophisticated tonal richness. The optimal approach is a primary vitello brown strap with a secondary NATO option for seasonal versatility.

How do I change the strap on the Oris Frank Sinatra without damaging the case?

Use a spring bar tool (strap removal instrument). Position the small hook of the tool into the spring hole, pressing downward to compress the spring. Simultaneously, withdraw the previous strap. Repeat on the opposite side. Insert the new strap by aligning the holes with the lugs, then engage the springs firmly into position. This operation requires care: if the lug feels rigid, consult a professional watchmaker to avoid case scratching.

Are there certified quality aftermarket straps compatible with this model?

Yes. In artisanal quality, 19mm-width straps from specialised Swiss and Italian manufacturers guarantee compatibility and finishing comparable to original equipment. Always verify that the vendor explicitly specifies "19mm lug width" and that the terminal ends are finished with double-stitched thread and stainless steel rivets. On milanostraps.it you'll find a dedicated collection of 19mm straps in premium materials: vegetable-tanned leather, shell cordovan, certified NATO fabrics.

How long does a leather strap last on this watch with daily use?

A high-quality leather strap (vegetable-tanned, alligator, shell cordovan) with daily wear maintains structural functionality between 3-5 years. After 18-24 months, the leather begins to develop natural patina and microscopic wear marks that increase aesthetic character. The buckle or deployant clasp (if precious metal) has superior longevity. To extend lifespan, keep the strap dry, clean periodically with soft cloth and apply protective creams every 6 months. With occasional use, durability extends significantly.