Strap for Rectangular Date 30 Stainless Steel / Black - Arabic

The lug width of the Oris Rectangular 01 561 7657 4034-07 5 21 71FC is 21mm. This dimension is model-specific and is measured internally between the top and bottom lugs where the strap attaches. A 20mm or 22mm strap would result in unwanted lateral play or difficulty fitting.

We recommend five primary materials for the Rectangular Oris: natural alligator (pronounced texture, rich patina), vegetable-tanned calf (elegant rusticity), NATO canvas (sporting versatility), FKM rubber (daily practicality), and shell cordovan (rarity and natural lustre). Choice depends on intended use and personal aesthetic preference; each option creates unique dialogue with the case geometry.

Obtain a spring bar tool (two-ended: one thin, one flat). Rest the watch on a soft surface. Insert the thin end into the small hole beside the top lug, lift slightly to release the internal spring, extract the lug pin. Repeat with the bottom lug. Reverse the procedure with the new strap. Operation takes 2–3 minutes; avoid forcing.

Yes, all straps with 21mm lug width are technically compatible. However, construction quality varies significantly. We recommend artisanal options (full-grain calf, natural alligator, shell cordovan) that honour the Oris case excellence. Avoid cheap synthetic straps, which compromise tactile experience and durability.

A quality leather strap (calf, alligator, shell cordovan) with vegetable tanning lasts 4–8 years with daily wear, depending on exposure to perspiration, water, and mechanical stress. Patina evolves over time, conferring character; creasing and scuffing are authenticity markers, not defects. NATO straps last 5–10 years; FKM rubber 3–5 years before stiffening occurs.