Which is cheaper, the Sinn 243 TW 66 WG Mother-of-pearl W or the Fortis Marinemaster M-40?

At MSRP the Fortis Marinemaster M-40 is the cheaper of the two at $3,520, against $6,102 for the Sinn 243 TW 66 WG Mother-of-pearl W — a $2,582 gap before any retailer discounting.

Which is bigger, the Sinn 243 TW 66 WG Mother-of-pearl W or the Fortis Marinemaster M-40?

The Fortis Marinemaster M-40 wears larger at 40mm versus 33mm for the Sinn 243 TW 66 WG Mother-of-pearl W — a 7mm difference across the dial.

Which has better water resistance, the Sinn 243 TW 66 WG Mother-of-pearl W or the Fortis Marinemaster M-40?

The Fortis Marinemaster M-40 is rated to 300m versus 100m for the Sinn 243 TW 66 WG Mother-of-pearl W.

What movement does the Sinn 243 TW 66 WG Mother-of-pearl W run compared to the Fortis Marinemaster M-40?

Both watches run automatic movements — the Sinn 243 TW 66 WG Mother-of-pearl W uses the ETA 2671 and the Fortis Marinemaster M-40 uses the Sellita SW220-1.

Side by side

Sinn 243 TW 66 WG Mother-of-pearl WvsFortis Marinemaster M-40

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

Sinn 243 TW 66 WG Mother-of-pearl W

243 TW 66 WG Mother-of-pearl W

MSRP $6,102

Fortis Marinemaster M-40

M-40

MSRP $3,520

At a glance

16 of 29 specs differ

Diameter

243 TW 66 WG Mother-of-pearl W33mm

Marinemaster M-4040mm

Power Reserve

243 TW 66 WG Mother-of-pearl W38h

Marinemaster M-4038h

Water Resistance

243 TW 66 WG Mother-of-pearl W100m

Marinemaster M-40300m

MSRP

243 TW 66 WG Mother-of-pearl W$6,102

Marinemaster M-40$3,520

Full specifications

Case

8 specs

Crystal & Dial

4 specs

Crystal Shape

—

Flat

AR Coating

Underside

Inner

Dial Color

White

Orange

Lume

Luminescent

None

Movement

3 specs

Caliber

ETA 2671

Sellita SW220-1

Jewels

Complications

Date

None

Pricing

1 specs

MSRP

$6,102

$3,520

Follow this matchup

Get a note when Sinn 243 TW 66 WG Mother-of-pearl W vs Fortis Marinemaster M-40 gets more votes, a community discussion, or a price drop. No account needed.

Keep exploring