Strap for AV-98 Strato Navy

The ChronoTheory & Co AV-98 CTW-027-Blue is fitted with 22mm lugs. This measurement is the standard for medium to large-sized timepieces and provides access to a broad range of aftermarket straps. To verify strap compatibility, measure the distance between the inner points of the upper and lower spring bars using a digital calliper or rigid ruler positioned perpendicularly across the lug space.

Selection depends on use context and aesthetic preference. For formal wear, vegetable-tanned calf leather or alligator in dark tones (black, dark brown, midnight blue) is recommended, as it develops character patina over time. For daily informal use, NATO fabric straps or technical elastomers offer resistance to environmental factors and extended comfort. The blue dial of the CTW-027-Blue naturally harmonizes with Tuscan leather in honey or cognac tones, which tempers the cool colour temperature.

The procedure requires a spring bar removal tool. Position the watch with the lug side upward, insert the pointed tip of the tool into the small hole on the lug shoulder to compress the spring, carefully extract the pin, remove the old strap and align the new strap's holes with the pins. Reinsert the pins carefully, ensuring the spring is correctly positioned. Avoid excessive pressure to prevent case scratching.

Yes, any strap with 22mm lug width is compatible with the CTW-027-Blue. Milano Straps provides a curated selection of vegetable-tanned leather, alligator, shell cordovan, NATO and rubber straps, all tested for mechanical and aesthetic compatibility. Aftermarket straps allow you to modulate the visual identity of the watch according to context, season and personal preference, without compromising the timepiece's structural integrity.

Longevity depends on leather quality, tanning treatment and intensity of use. High-quality vegetable-tanned leather, worn daily, maintains optimal functional characteristics for 3-5 years; it develops characteristic patina and pleasant tactile texture. Occasional use extends durability beyond 7-10 years. Prolonged exposure to humidity, intense heat and UV rays accelerates ageing. Periodic maintenance with leather-specific products (balms, regenerating oils) preserves elasticity and water resistance, delaying inevitable wear.