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Spinnaker watch · automatic

Spinnaker Croft Mid-Size Automatic Regiment Blue

The Spinnaker SP-5100-22 measures 40 mm across, 47 mm lug to lug, and 13.8 mm thick. It fits wrists from ~16.5 cm (flat-fit estimate).

Sources checked · How we source numbers
Case
40 mm1
Lug to lug
47 mm1
Thickness
13.8 mm1
Lug width
not published by Spinnaker
Spinnaker SP-5100-22: size drawingSpinnaker SP-5100-22, round case, top and side view to scale: case diameter 40 mm, lug to lug 47 mm, lug width — (unknown), thickness 13.8 mm. Bezel, dial and crown size are schematic.lug width —Ø 40lug to lug 47TOPthickness 13.8SIDE
Spinnaker SP-5100-22, top and side, to scaleDrawing from data, not a photo · mm

Spinnaker SP-5100-22 specifications

Case diameter
40 mm1
Lug to lug
47 mm1
Thickness
13.8 mm1
Lug width
not published by Spinnaker
Weight
160 g1
Crystal
Sapphire Lens1
Water resistance
15 ATM1
Movement
TMI NH351 · automaticTMI NH35 specs
Battery
none: the TMI NH35 is automatic
Years made
start not published
Case code
not in our data yet

On your wrist

The verdict compares the lug to lug with the flat top of your wrist. Balanced from ~16.5 cm, past the edges below ~15 cm.

= 6.7 in

Balanced on a 17 cm wrist: the 47 mm lug to lug covers 86% of an estimated 54.8 mm flat top.

Flat top = circumference ÷ 3.1, a community convention, not a measurement of your arm. Compact ≤ 0.75 of the flat top, balanced ≤ 0.89, at the edge ≤ 1. Compare more watches in the watch size calculator.

Spinnaker SP-5100-22: wrist fitSpinnaker SP-5100-22 on a wrist, top view to scale. lug to lug 47 mm. Wrist 170 mm, estimated flat width 54.8 mm (circumference / 3.1). Ratio 0.86: balanced.wrist, flat topwrist flat ≈ 54.8lug to lug 47Balanced · 47 / 54.8 = 0.86estimate: wrist 170 / 3.1 = 54.8 flatcompactbalancededgeoverhang0.750.891
Spinnaker SP-5100-22 on a 17 cm wristDrawing from data, not a photo · mm

Actual size on your screen

Calibrate once with a bank card and the drawing shows the Spinnaker SP-5100-22 at 1:1, next to a millimetre ruler.

1:1 · not calibrated: sizes are approximate
Spinnaker SP-5100-22: size drawingSpinnaker SP-5100-22, round case, top and side view to scale: case diameter 40 mm, lug to lug 47 mm, lug width — (unknown), thickness 13.8 mm. Bezel, dial and crown size are schematic.lug width —Ø 40lug to lug 47TOPthickness 13.8SIDE
Drawing from data, not a photo · mm
01020304050

Spinnaker SP-5100-22 strap size

Spinnaker publishes no lug width for the Spinnaker SP-5100-22. Measure between the lugs with a caliper before buying a third-party strap.

Attachment: not published in our sources.

Find your strap length in the watch strap size tool, with the Spinnaker SP-5100-22 filled in.

Movement: TMI NH35

The Spinnaker SP-5100-22 runs on the TMI NH35, an automatic movement.

Beat rate
21,600 bph2
Power reserve
41 h3
Jewels
242
Accuracy
−20 to +40 s/day3
Hacking seconds
Yes2
Hand winding
Yes3

Battery

none: the TMI NH35 is automatic

A mechanical watch has no cell to replace; it needs a service instead.

Same size as the Spinnaker SP-5100-22

The models nearest to the Spinnaker SP-5100-22 in case width and lug to lug, drawn over it to scale; below, every model within 1 mm of its 47 mm.

Size comparison: Spinnaker SP-5100-22, Seiko SUR373, Zelos Helmsman SS Meteorite, Seiko SPB167Top-view outlines to scale on one centre. A Spinnaker SP-5100-22: Ø 40, L2L 47, lug —, T 13.8. B Seiko SUR373: Ø 40.2, L2L 47, lug 20, T 8.4 (vs A: Ø +0.2 L2L 0 T −5.4). C Zelos Helmsman SS Meteorite: Ø 40, L2L 46.5, lug 20, T 12.5 (vs A: Ø 0 L2L −0.5 T −1.3). D Seiko SPB167: Ø 39.5, L2L 47, lug —, T 11 (vs A: Ø −0.5 L2L 0 T −2.8).D Ø 39.5A Ø 40C Ø 40B Ø 40.2C L2L 46.5A L2L 47B L2L 47D L2L 47A Spinnaker SP-5100-22Ø 40 · L2L 47 · lug — · T 13.8B Seiko SUR373Ø 40.2 · L2L 47 · lug 20 · T 8.4vs A: Ø +0.2 L2L 0 T −5.4C Zelos Helmsman SS MeteoriteØ 40 · L2L 46.5 · lug 20 · T 12.5vs A: Ø 0 L2L −0.5 T −1.3D Seiko SPB167Ø 39.5 · L2L 47 · lug — · T 11vs A: Ø −0.5 L2L 0 T −2.8
A Spinnaker SP-5100-22 and the 3 nearest in size, on one centre, to scaleDrawing from data, not a photo · mm

Nearest in size

  1. ASpinnaker SP-5100-22this watch
  2. BSeiko SUR373W +0.2 · L2L same · T −5.4 mm
  3. CZelos Helmsman SS MeteoriteW same · L2L −0.5 · T −1.3 mm
  4. DSeiko SPB167W −0.5 · L2L same · T −2.8 mm

Differences against A in mm: W case width, L2L lug to lug, T thickness. Nearest by width and length together, from the published sizes.

Spinnaker SP-5100-22 questions

How big is the Spinnaker SP-5100-22?

The Spinnaker SP-5100-22 measures 40 mm across, 47 mm lug to lug, 13.8 mm thick, 160 g.

Will the Spinnaker SP-5100-22 fit a 6.5-inch wrist?

Balanced: the Spinnaker SP-5100-22's 47 mm lug to lug takes 88% of the ~53.3 mm flat top of a 6.5-inch (16.5 cm) wrist. By the same estimate (circumference ÷ 3.1) it sits balanced from about 16.5 cm and overhangs the flat top on wrists under about 15 cm.

Does the Spinnaker SP-5100-22 need a battery?

No. The Spinnaker SP-5100-22 has no cell to replace: a wound mainspring drives its automatic TMI NH35.

What movement is in the Spinnaker SP-5100-22?

The Spinnaker SP-5100-22 runs on the TMI NH35, an automatic movement.

More Spinnaker watches

Sources

Documents checked · Report a wrong number

  1. 1Spinnaker Watches — Croft Mid-Size Automatic — Regiment Blue (SP-5100-22) · html · read
  2. 2Time Module Ltd. — Product Line-Up - Mechanical (NH0&NH3); NH34/NH35/NH36 product blocks · html · read
  3. 3Time Module Ltd. — Technical Guide & Parts Catalogue, Cal.NH3 Series (NH34A/35A/36A/37A/38A/39A) - Automatic Mechanical · pdf · read