Side by side

Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's WatchvsZelos Great White 43

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

Great White 43
ZelosGreat White 43
MSRP $599

At a glance

14 of 29 specs differ
Diameter
Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch39.5mm
Great White 4343mm
Power Reserve
Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch45h
Great White 4340h
Water Resistance
Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch200m
Great White 43300m
MSRP
Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch$2,800
Great White 43$599

Full specifications

Case

6 specs
Diameter
39.5mm
43mm
Thickness
12.3mm
12mm
Lug-to-Lug
47.2mm
43mm
Lug Width
20mm
22mm
Material
Stainless Steel
Titanium (DLC coated)
Water Resistance
200m
300m

Crystal & Dial

4 specs
Crystal Shape
Box
Flat
AR Coating
Anti-reflective coating on inner surface
Inner
Dial Color
Black
Blue
Lume
LumiBrite on hands, index(es) and bezel
None

Movement

3 specs
Caliber
6L37
Miyota 9015
Power Reserve
45h
40h
Jewels
26
25

Pricing

1 specs
MSRP
$2,800
$599

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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.

Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch

The Seiko Prospex Marinemaster 1965 Heritage Diver's Watch is praised for its faithful re-creation of the 62MAS design, with reviewers noting improved wearability due to smaller case sizes (38mm to 40mm) and updated bracelets. Specific models feature a stainless steel case with super-hard coating, ceramic bezel, and a tool-free extension system on the bracelet. Accuracy figures vary, with one model rated at -5/+10 seconds per day and another at -10/+15 seconds per day, powered by movements like the Caliber 8L45 or 6L37 offering 72-hour or 46-hour power reserves respectively. Some reviewers point out drawbacks such as an unsigned winding crown, a lack of tool-free micro-adjust on the clasp for certain models, and a secondary GMT function on one variant. The price point, ranging from $2,800 to $3,600, is considered high by some, especially when compared to other Seiko or Grand Seiko offerings.

Zelos Great White 43

Owners widely praise the Zelos Great White 43's "unbelievable" and "amazing" lume, particularly on the carbon and Frost variants. The Miyota 9015 movement and 300m water resistance are noted features. Some owners find the 43mm size large, while others report it wears well. Opinions are divided on colorways, with some disappointed by the absence of a "Nebula" option and others finding the "Arctic" version striking. Overall, owners rate the Zelos Great White 43 highly for its exceptional lume and robust specifications at the price point.

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