Technical Archive

Seiko
Prospex Divers SRPA21— lug 22mm

Seiko Prospex Divers SRPA21 da 45mm con ansa 22mm. Cinturini cuoio, NATO, gomma compatibili. Consulenza artigianale Seiko.

Seiko Prospex Divers SRPA21 — orologio

Artisanal Note

"The 45 case requires a precise 22mm lug width to preserve the original sartorial balance."

Technical Specifications

Seiko SRPA21
Lug Width
22 mm

The essential strap measurement.

Browse 22mm straps →
Case Size
45 mm
Reference

SRPA21

Movement

Seiko caliber 4R36 Hours, Minutes, Seconds | Date, Day

The Heritage

The Seiko Prospex Divers SRPA21 features the automatic Caliber 4R36 with hour, minute, second, date and day indications. The stainless steel case has a diameter of 45mm with 22mm lugs. The movement offers essential functions for professional underwater use.

Compatible Straps

Selected for 22mm lug width