Dog Watch GMT 40

Dog Watch GMT 40 Ink

DW-40K

16:00 to 20:00

$1,890

Black bezel, black dial. The yellow bezel segment and the tip of the GMT hand are the only color on it.

In stock, ships in 2 days

Ines replies within one working day with a payment link and a ship date. Put your wrist size in the email and we’ll size the bracelet before it ships.

Case

Case

40 mm steel, 47.5 mm lug to lug

Thickness

Thickness

12.6 mm

Lug width

Lug width

20 mm

Water resistance

Water resistance

200 m, screw-down crown at 4

Movement

Movement

Sellita SW330-2, automatic GMT

Power reserve

Power reserve

56 hours

Accuracy

Accuracy

−2 to +6 seconds a day, checked in 5 positions

Crystal

Crystal

Double-domed sapphire, anti-reflective inside only

Lume

Lume

Super-LumiNova X1 C3, yellow GMT hand

Weight

Weight

151 g on the bracelet

In the box: the steel bracelet, a navy sailcloth strap, a strap tool, and the test card Ruth signs after the pressure test.

Notes from the bench

Two short watches

The dog watches split 16:00 to 20:00 into two shifts of two hours, so the rotation moves and everyone gets supper. The yellow bezel segment covers those four hours. Set the bezel to a second time zone and the segment moves with it. A few owners use it as a reminder for a daily call home.

A real GMT

The Sellita SW330-2 lets you jump the local hour hand forward or back without stopping the seconds, which is what you want after a flight. The fourth hand with the yellow tip keeps home time on the 24-hour bezel.

How it fits

It is 1 mm wider and 1.2 mm thicker than the Middle 39. It looks better on wrists over 7 inches. Under that, we’d point you to the Middle 39.

Middle 39 on a navy sailcloth strap lying on folded white sail with a brass grommet

Every reference ships with a sailcloth strap. Sam cuts them from sails retired by Hollis Sails, the loft downstairs, so no two have quite the same weave.

5-year warranty

Covers the movement, the case and the bracelet.

First service free

Strip-down, clean, regulation and new gaskets, once in the first five years.

Insured 2-day shipping

Free in the US by UPS. $45 to Canada, the UK and the EU, duties paid.

30 days to decide

Return it worn or unworn. Engraved casebacks are the exception.

MIDDLEWATCH

Six people above a sail loft at 212 Commercial Street in Portland, Maine. We build watches in batches of 300 and service every one we’ve sold.

It’s five bells in the middle watch (02:40 your time).

Workshop

Thursday and Saturday, 10 to 4, by appointment

A ship’s day, in seven watches. The yellow ones have a Middlewatch named after them.

Middle

00–04

Morning

04–08

Forenoon

08–12

Afternoon

12–16

First dog

16–18

Last dog

18–20

First

20–24

© 2026 Middlewatch Co. Assembled and regulated in Portland, Maine, around Swiss movements by Sellita.

© 2026 Middlewatch Co. Assembled and regulated in Portland, Maine, around Swiss movements by Sellita.

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