Strap for Seamaster Diver 300M Automatic 36.25 White Gold / Black / Bracelet

The Omega Seamaster Diver 300M ref. 2152.50.00 has a lug width of 20mm. This dimension is measured as the internal distance between the two case attachment points. It is essential to use a strap with exactly 20mm lug width to avoid excessive play or fitting issues.

For a 2152.50.00 in white gold we recommend cognac-brown alligator or black calf leather, both capable of enhancing the contrast with the precious metal. For those engaging in water activities, black FKM rubber or a neutral NATO strap guarantee practicality without compromising water resistance. The choice depends on intended use and your wardrobe.

Strap replacement requires a specific tool: the spring bar tool. Insert the spring release button into the two small lateral slots of the lug, gently compressing the spring to free the pin. This operation is straightforward but requires care to avoid scratching the case. If inexperienced, consult a professional horologist.

Yes, any strap with a 20mm lug width is compatible with this reference. The important thing is to verify measurement accuracy: a tolerance of 0.5mm is acceptable, beyond that it would be problematic. Materials such as alligator, calf, shell cordovan and rubber adapt perfectly while maintaining the sporty-elegant character of the Seamaster.

A quality leather strap (alligator, calf) lasts on average 3-5 years with daily use, provided proper maintenance: avoid prolonged water exposure, apply conditioning balm every 6-12 months, keep it dry. Occasional use significantly extends durability. Rubber and nylon NATO straps offer greater resistance (7-10 years), especially if exposed to humid environments or water sports.