SPECUS SA-1
Technical specifications
Movement Sellita SW210 b; hand-wound mechanical calibre without a date function
Functions hours, minutes, and seconds
Case 316L stainless steel; 42 mm wide; 14 mm thick; 52.5 mm lug to lug
Dial sandwich construction with luminous material
Crystal sapphire with an internal anti-reflective coating
Water resistance 100 metres
Crown screw-down
Strap ostrich leather; 22 mm at the lugs, tapering to 20 mm at the buckle
Buckle 316L stainless steel
SA-1 / pre-order list
Leave your email for the pre-order opening date and order details.
Sandwich dial
The upper plate forms the markings while the luminous layer beneath illuminates the hour indices.
Case form
The straight steel case flank meets a raised circular bezel. The crown and strap junction are clearly visible in profile. Together, these distinct elements give the SA-1 the utilitarian presence of a wrist-worn instrument.
Pins and expansion modules
The case has four external attachment points for pins and future modules. The pins are user-replaceable with a 2 mm hex screwdriver.
We plan to make pins in different colours and materials, including editions created through collaborations.
Dial lume
In low light, the luminous layer reveals the cut-out markers, numerals, and logo of the sandwich dial.