BewristHomage watches, measured
Steelflier SF752, black · steel · red
SF752, black · steel · red

Steelflier SF752

A homage of the Sinn U1

Black dial, nylon version: about £134 $179, seen 2 Oct

At www.steeldives.com, in stock on 2 Oct.

Size
45 mm across, 1 mm wider than the Sinn
Movement
Japan NH35, automatic. Sapphire crystal
Look
Not compared mark by mark yet
Gives it away
Steel is 316L, where the U1 uses submarine steel with Tegiment hardening2 more under “Against the Sinn”
View at www.steeldives.com

This button is for the black dial, nylon version. The photo shows the black · steel · red.

We may earn a commission when you buy through these links. As an Amazon Associate I earn from qualifying purchases.

Against the Sinn

Sinn U1 U1 (1010.010)44Sinn U1 U1 (1010.010)
Steelflier SF75245Steelflier SF752

Photos use listed case widths and automatic case-edge readings. The readings have not been manually audited. Photo proportions stay unchanged. Perspective and lug length can differ.

45 mm, 1 mm wider than the Sinn
Sinn U1 U1 (1010.010) photo: U1 (1010.010). Steelflier SF752 photo: black · steel · red.

The Sinn drawn is the U1 (1010.010).

What gives it away

  • 1 mm wider than the Sinn, 45 mm against 44 mm
  • 45 mm case, larger than the Sinn U1
  • Steel is 316L, where the U1 uses submarine steel with Tegiment hardening

  • Notched steel dive bezel

    Not compared yet.

  • Red seconds hand

    Not compared yet.

  • Square and block markers

    Not compared yet.

  • Date at 3

    Not compared yet.

  • Red U1 print

    Not compared yet.

  • Solid link bracelet

    Not compared yet.

Sinn left, SF752 right.

Everything else

Every spec13 listed, each with where it came from

Every spec we have

From sellers. Each figure links to where it was found.

For the SF752 black dial, nylon version.

Case width
45 mmsteeldives.com, 2 Oct
Lug to lug
52.5 mmsteeldives.com, 2 Oct
Thickness
15.2 mmsteeldives.com, 2 Oct
Lug width
22 mmsteeldives.com, 2 Oct
Movement type
Automaticsteeldives.com, 2 Oct
Movement calibre
Japan NH35steeldives.com, 2 Oct
Case material
316L stainless steelsteeldives.com, 2 Oct
Crystal
Sapphire, ARsteeldives.com, 2 Oct
Water resistance
200 msteeldives.com, 2 Oct
Bezel
120-click unidirectional stainless steelsteeldives.com, 2 Oct
Lume
Swiss C3 greensteeldives.com, 2 Oct
Return policy
30-day return and refund servicesteeldives.com, 2 Oct
Warranty
2 yearssteeldives.com, 2 Oct
The movementJapan NH35, in plain words

The movement, in plain words

Steelflier lists the Japan NH35 for the SF752. It is an automatic, so wearing it winds it.

On your wrist45 mm across, 15.2 mm thick, on a wrist your size

How it sits on your wrist

Set your wrist circumference to compare the 45 mm case with a schematic wrist. The ellipse estimates wrist width and shape. It cannot predict your fit.

17.0 cm6.7 in around

This wrist model is about 56 mm across. The case spans 80% of that estimated width. The lug span ends 1.8 mm inside each model edge.

Wrap a strip of paper round your wrist just below the bone, mark where it meets and measure it.

45 mm case 52.5 mm lug to lug Wrist model about 56 mm across
Schematic section, with a 10 mm grid. The ellipse approximates wrist anatomy from circumference. Your wrist shape, lug curve and fit will differ.

How tall it stands

15.2 45 wide 52.5 lug to lug

The side view uses listed dimensions. Case shape and lug curve are schematic.

More photographs3 from makers, sellers and owners

More photographs

SourcesThe 2 pages this record was built from