Steelflier SF752 Automatic Dive Watch — NH35, 45mm, 200m, BGW9 Lume, 4 Strap Options

The Steelflier SF752 is a 45mm NH35 automatic dive watch rated to 200m — Swiss Super-LumiNova BGW9 on hands, markers and bezel triangle, red accent second hand and bezel minute markings, stainless steel 120-click unidirectional bezel, synthetic sapphire crystal at 33.5mm × 3.8mm thickness, screw-lock crown at 7mm, screw-in solid caseback, 316L stainless steel case at 15.2mm and 52.5mm lug-to-lug, 120g without strap. Four variants (SF752-KN, SF752-ZP, SF752-HP, SF752-05L) across three strap types: stainless steel bracelet, leather (black and brown) and nylon.

Key Specifications

Strap Options and Weights

BGW9 Lume — Blue-White Glow

The SF752 uses Swiss Super-LumiNova BGW9 rather than the C3 grade used on the SF783. BGW9 produces a blue-white afterglow in darkness rather than C3’s bright green. The blue-white glow is less intense than C3 but has a cooler, vintage-adjacent character — associated with military and professional diving instruments. BGW9 is applied to hands, hour markers and the bezel triangle pip.

Red Accents — Second Hand and Bezel

The SF752’s dial and bezel use red as the accent colour across three elements:

Red second hand: The seconds hand sweeps in red against the black dial — creating high-visibility confirmation that the movement is running. Red on black is maximum contrast for the element that moves most frequently.

Red bezel minute markings: The bezel’s elapsed-time scale uses red minute graduation lines between the standard black numerals — creating a dual-colour bezel that separates the numeral positions from the intermediate graduations.

White triangle pip: The 12 o’clock bezel reference marker is white, contrasting against both the red and black bezel elements.

SF752 vs SF783 — Size and Bezel Comparison

Both are Steelflier NH35 200m divers at Jewelry Addicts:

Choose SF752 for the larger 45mm case, BGW9 blue-white lume and red accent dial character. Choose SF783 for the smaller 41mm case, ceramic bezel and the lighter overall weight.

45mm at 15.2mm — Wrist Requirements

The SF752 is a large watch by any measure — 45mm diameter, 15.2mm thickness, 52.5mm lug-to-lug. On wrists below approximately 18cm the lugs will overhang significantly. The 15.2mm height means the watch sits notably above the wrist plane compared to dress watches at 8–11mm.

For buyers who specifically want an oversized tool watch with strong wrist presence, the SF752 delivers exactly that. For buyers who are unsure about sizing, the SF783 at 41mm/13.1mm is a more conservative starting point within the same Steelflier range.

Who Is the Steelflier SF752 For?

The SF752 is built for:

• BGW9 lume buyers who want the blue-white glow rather than green on an NH35 200m diver
• Large case buyers who specifically want 45mm — the SF752 at 45mm is among the larger NH35 divers in the range
• Red accent buyers who want the red second hand and bezel marking combination
• Khaki nylon buyers who want the military/field-watch character on a 200m dive specification

How It Compares

vs. Steelflier SF783 — See comparison table above. SF783 is smaller with ceramic bezel; SF752 is larger with steel bezel and BGW9.

vs. Steeldive SD1949S Bronze 1000m — SD1949S uses NH35 at 45mm/1000m square bronze case with C3+BGW9 dual lume. SF752 uses NH35 at 45mm/200m round steel case with BGW9. Both are large NH35 diver watches — different case material (bronze vs steel), water resistance and case shape.

vs. Sea Knight SK02 — Sea Knight uses NH35A at 40mm/200m with ceramic bezel and mesh bracelet. SF752 uses NH35 at 45mm/200m with steel bezel. Different scales — SK02 is compact; SF752 is oversized.

More from Jewelry Addicts

• Steelflier SF783 NH35 41mm — smaller Steelflier diver with ceramic bezel
• Steelflier SF790 GMT — Steelflier GMT alternative
• Steeldive SD1949S 1000m — 45mm bronze square ultra-deep diver
• Best Automatic Watches Under $500 — full roundup

SF752 with nylon strap

SF752 with stainless steel strap

SF752 with leather strap

Package specification:

-Mechanical watch
-Waterproof watch box
-User manual
-Hang tag
-Warranty card
-Steel belt adjuster (choose steel belt to get)