Side by side

Fortis Marinemaster M-40vsNivada Grenchen Antarctic Spider

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

Marinemaster M-40
FortisMarinemaster M-40
MSRP $3,520
Antarctic Spider
Nivada GrenchenAntarctic Spider
MSRP $945

At a glance

13 of 29 specs differ
Diameter
Marinemaster M-4040mm
Antarctic Spider38mm
Power Reserve
Marinemaster M-4038h
Antarctic Spider38h
Water Resistance
Marinemaster M-40300m
Antarctic Spider200m
MSRP
Marinemaster M-40$3,520
Antarctic Spider$945

Full specifications

Case

7 specs
Category
Diver
Tool
Diameter
40mm
38mm
Thickness
13mm
11.1mm
Lug-to-Lug
46mm
Lug Width
21mm
20mm
Finish
Brushed and polished
Brushed + Polished
Water Resistance
300m
200m

Crystal & Dial

2 specs
Dial Color
Orange
White
Lume
None
Super-LumiNova

Movement

3 specs
Caliber
Sellita SW220-1
Sellita SW200
Jewels
26
25
Complications
None
GMT, Date

Pricing

1 specs
MSRP
$3,520
$945

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What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Fortis Marinemaster M-40

Owners praise the Fortis Amber Orange for its gorgeous appearance and strong wrist presence, noting its crazy lume and 70-hour power reserve. The Doxa SUB 300T, described as having a superb, eccentric design with a highly legible dial and functional no-decompression bezel, uses an ETA 2824-2 movement. However, the SUB 300T's 42.5mm case wears large and its 14mm thickness is not ideal for dress shirts, though it boasts 1,200m water resistance. On balance, owners appreciate the Fortis Amber Orange for its striking aesthetics and impressive lume.

Nivada Grenchen Antarctic Spider

Owners widely praise the Nivada Grenchen Antarctic for its historically significant design and excellent wearability, particularly its thin case and non-modern sizing. Reviewers note its charming versatility and faithful vintage execution, with one owner highlighting the buttery winding action and another the affordable price point. However, some owners find the dial difficult to read, and the lume is noted as weak. The manual-wind movement's crown re-engagement is described as finicky, and minute marker application has been criticized as imperfect. The beige Super-LumiNova is also considered too yellow by one reviewer. Overall, owners and reviewers rate the Nivada Grenchen Antarctic highly for its faithful vintage design and wearability at an attractive price.

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