Strap for Lange 1 Perpetual Calendar Platinum / Black

The lug width of the A. Lange & Söhne Lange 1 Ref. 345.036 E is 22mm. This measurement represents the internal distance between the two spring bars (lugs) on the case. The 22mm dimension is the proportional width established by Günter Bledow's original design and ensures visual harmony between the 41.90mm case diameter and the strap. Verify the measurement with a digital calliper positioned perpendicular to the case plane.

For a platinum 345.036 E, alligator leather remains the idiomatic choice: the natural texture of the crocodile skin dialogues directly with the guilloché dial finish. Alligator in dark brown or soft black creates chromatic continuity without visual competition. Shell cordovan, with its patina developed over time and vegetable-tanned construction, represents the historical alternative for those seeking a monolithic, aged leather. For more informal contexts, cream or white calf leather paired with a platinum deployante clasp offers a contemporary approach. High-grade FKM rubber remains always practical for dynamic environments without compromising the watch's character.

The strap on the 345.036 E is secured by spring bars positioned at the case extremities. To remove it: work in well-lit conditions and use a dedicated spring bar tool to simultaneously press inward on one spring bar whilst lifting the strap. The internal spring tension allows peg extraction. Repeat from the opposite side. When inserting the new strap, align the case holes with the spring bar pegs and press until you hear a click. If you prefer professional assistance, Casati Milano offers strap-changing service with personalised consultation.

Yes, any strap with a 22mm lug width is physically compatible with the 345.036 E. However, material choice and finish remain essential for aesthetic coherence. Platinum deserves proportions and chromatic choices conceived in relation to the case metal: alligator, vegetable-tanned shell cordovan, or superior-quality calf guarantee durability and proper patina development. Avoid synthetic leather or generic rubber straps, which diminish the watch's perceived value. Discover our curated selection of 22mm-compatible straps, chosen for constructive proportion and material quality.

The lifespan of a natural leather strap depends on tanning methodology, usage frequency, and environmental conditions. Vegetable-tanned alligator, properly maintained, guarantees 4-6 years of daily wear before fibres begin showing fatigue at attachment points. Shell cordovan, thanks to its structural density, can last 6-8 years under identical conditions. Calf leather has an average longevity of 3-4 years if exposed to frequent perspiration and humidity. High-quality FKM rubber retains elasticity and colour for 5-7 years. Casati Milano provides an 18-month warranty against manufacturing and tanning defects; we recommend regular cleaning with a soft, dry cloth and periodic inspection of spring bar attachments.