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Islander watch · automatic

Islander 38mm Automatic Dive Watch ISL-05

The Islander ISL-05 measures 38 mm across, 44.5 mm lug to lug, and 13 mm thick. It fits wrists from ~15.5 cm (flat-fit estimate).

Sources checked · How we source numbers
Case
38 mm1
Lug to lug
44.5 mm1
Thickness
13 mm1
Lug width
not published by Islander
Islander ISL-05: size drawingIslander ISL-05, round case, top and side view to scale: case diameter 38 mm, lug to lug 44.5 mm, lug width — (unknown), thickness 13 mm. Bezel, dial and crown size are schematic.lug width —Ø 38lug to lug 44.5TOPthickness 13SIDE
Islander ISL-05, top and side, to scaleDrawing from data, not a photo · mm

Islander ISL-05 specifications

Case diameter
38 mm1
Lug to lug
44.5 mm1
Thickness
13 mm1
Lug width
not published by Islander
Crystal
Anti-reflective (blue hue) flat sapphire1
Water resistance
200 meters1
Movement
TMI NH361 · automaticTMI NH36 specs
Battery
none: the TMI NH36 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 ~15.5 cm, past the edges below ~14 cm.

= 6.7 in

Balanced on a 17 cm wrist: the 44.5 mm lug to lug covers 81% 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.

Islander ISL-05: wrist fitIslander ISL-05 on a wrist, top view to scale. lug to lug 44.5 mm. Wrist 170 mm, estimated flat width 54.8 mm (circumference / 3.1). Ratio 0.81: balanced.wrist, flat topwrist flat ≈ 54.8lug to lug 44.5Balanced · 44.5 / 54.8 = 0.81estimate: wrist 170 / 3.1 = 54.8 flatcompactbalancededgeoverhang0.750.891
Islander ISL-05 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 Islander ISL-05 at 1:1, next to a millimetre ruler.

1:1 · not calibrated: sizes are approximate
Islander ISL-05: size drawingIslander ISL-05, round case, top and side view to scale: case diameter 38 mm, lug to lug 44.5 mm, lug width — (unknown), thickness 13 mm. Bezel, dial and crown size are schematic.lug width —Ø 38lug to lug 44.5TOPthickness 13SIDE
Drawing from data, not a photo · mm
01020304050

Islander ISL-05 strap size

Islander publishes no lug width for the Islander ISL-05. 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 Islander ISL-05 filled in.

Movement: TMI NH36

The Islander ISL-05 runs on the TMI NH36, an automatic movement. 1 other model in our base uses it.

Beat rate
21,600 bph2
Jewels
242
Hacking seconds
Yes2
Hand winding
Yes3

Battery

none: the TMI NH36 is automatic

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

Same size as the Islander ISL-05

The models nearest to the Islander ISL-05 in case width and lug to lug, drawn over it to scale; below, every model within 1 mm of its 44.5 mm.

Size comparison: Islander ISL-05, Seiko SRPD97, Seiko SRPE41, Seiko SRPE43Top-view outlines to scale on one centre. A Islander ISL-05: Ø 38, L2L 44.5, lug —, T 13. B Seiko SRPD97: Ø 38.3, L2L 43.6, lug 20, T 11.2 (vs A: Ø +0.3 L2L −0.9 T −1.8). C Seiko SRPE41: Ø 38.5, L2L 45.4, lug 20, T 11.8 (vs A: Ø +0.5 L2L +0.9 T −1.2). D Seiko SRPE43: Ø 38.5, L2L 45.4, lug 20, T 11.8 (vs A: Ø +0.5 L2L +0.9 T −1.2).A Ø 38B Ø 38.3C Ø 38.5D Ø 38.5B L2L 43.6A L2L 44.5C L2L 45.4D L2L 45.4A Islander ISL-05Ø 38 · L2L 44.5 · lug — · T 13B Seiko SRPD97Ø 38.3 · L2L 43.6 · lug 20 · T 11.2vs A: Ø +0.3 L2L −0.9 T −1.8C Seiko SRPE41Ø 38.5 · L2L 45.4 · lug 20 · T 11.8vs A: Ø +0.5 L2L +0.9 T −1.2D Seiko SRPE43Ø 38.5 · L2L 45.4 · lug 20 · T 11.8vs A: Ø +0.5 L2L +0.9 T −1.2
A Islander ISL-05 and the 3 nearest in size, on one centre, to scaleDrawing from data, not a photo · mm

Nearest in size

  1. AIslander ISL-05this watch
  2. BSeiko SRPD97W +0.3 · L2L −0.9 · T −1.8 mm
  3. CSeiko SRPE41W +0.5 · L2L +0.9 · T −1.2 mm
  4. DSeiko SRPE43W +0.5 · L2L +0.9 · T −1.2 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.

Same movement: TMI NH36

Islander ISL-05 questions

How big is the Islander ISL-05?

The Islander ISL-05 measures 38 mm across, 44.5 mm lug to lug, 13 mm thick.

Will the Islander ISL-05 fit a 6.5-inch wrist?

Balanced: the Islander ISL-05's 44.5 mm lug to lug takes 84% 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 15.5 cm and overhangs the flat top on wrists under about 14 cm.

Does the Islander ISL-05 need a battery?

No. The Islander ISL-05 has no cell to replace: a wound mainspring drives its automatic TMI NH36.

What movement is in the Islander ISL-05?

The Islander ISL-05 runs on the TMI NH36, an automatic movement.

More Islander watches

Sources

Documents checked · Report a wrong number

  1. 1Long Island Watch (Islander brand) — Islander 38mm Automatic Dive Watch ISL-05 · 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