Side by side

Fortis Marinemaster M-40vsIslander Islander 38mm Automatic Dive Watch with Solid-Link Bracelet, AR Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-05

Q: Which is cheaper, the Fortis Marinemaster M-40 or the Islander 38mm Automatic Dive Watch with Solid-Link Bracelet, AR Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-05?

At MSRP the Islander 38mm Automatic Dive Watch with Solid-Link Bracelet, AR Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-05 is the cheaper of the two at $429, against $3,520 for the Fortis Marinemaster M-40 — a $3,091 gap before any retailer discounting.

Q: Which is bigger, the Fortis Marinemaster M-40 or the Islander 38mm Automatic Dive Watch with Solid-Link Bracelet, AR Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-05?

The Fortis Marinemaster M-40 wears larger at 40mm versus 38mm for the Islander 38mm Automatic Dive Watch with Solid-Link Bracelet, AR Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-05 — a 2mm difference across the dial.

Q: Which has better water resistance, the Fortis Marinemaster M-40 or the Islander 38mm Automatic Dive Watch with Solid-Link Bracelet, AR Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-05?

The Fortis Marinemaster M-40 is rated to 300m versus 200m for the Islander 38mm Automatic Dive Watch with Solid-Link Bracelet, AR Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-05.

Q: What movement does the Fortis Marinemaster M-40 run compared to the Islander 38mm Automatic Dive Watch with Solid-Link Bracelet, AR Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-05?

Both watches run automatic movements — the Fortis Marinemaster M-40 uses the Sellita SW220-1 and the Islander 38mm Automatic Dive Watch with Solid-Link Bracelet, AR Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-05 uses the Seiko NH36.

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Fortis Marinemaster M-40

M-40

MSRP $3,520

Islander Islander 38mm Automatic Dive Watch with Solid-Link Bracelet, AR Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-05

islander-38mm-automatic-dive-watch-with-solid-link-bracelet-ar-sapphire-crystal-

MSRP $429

At a glance

14 of 29 specs differ

Diameter

Marinemaster M-4040mm

Islander 38mm Automatic Dive Watch with Solid-Link Bracelet, AR Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-0538mm

Power Reserve

Marinemaster M-4038h

Islander 38mm Automatic Dive Watch with Solid-Link Bracelet, AR Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-05—

Water Resistance

Marinemaster M-40300m

Islander 38mm Automatic Dive Watch with Solid-Link Bracelet, AR Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-05200m

MSRP

Marinemaster M-40$3,520

Islander 38mm Automatic Dive Watch with Solid-Link Bracelet, AR Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-05$429

Full specifications

Case

6 specs

Diameter

40mm

38mm

Lug-to-Lug

—

44.5mm

Lug Width

21mm

20mm

Finish

Brushed and polished

—

Water Resistance

300m

200m

Caseback

Solid

Engraved screw-in back

Crystal & Dial

3 specs

AR Coating

Inner

Yes

Dial Color

Orange

—

Indices

Applied

—

Movement

4 specs

Caliber

Sellita SW220-1

Seiko NH36

Beat Rate

28,800 vph

0 vph

Power Reserve

38h

Jewels

Pricing

1 specs

MSRP

$3,520

$429

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