Side by side

RZE EndeavourvsSeiko Prospex Sea 1968 Heritage Diver's GMT

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

Endeavour
RZEEndeavour
MSRP $599
Prospex Sea 1968 Heritage Diver's GMT
SeikoProspex Sea 1968 Heritage Diver's GMT
MSRP $1,500
What people say

Owners + reviewers, side by side

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

RZE Endeavour

The RZE Endeavour is widely praised for its exceptionally lightweight and comfortable titanium case, enhanced by an ULTRAHex coating for durability. Owners and reviewers highlight its striking dial, excellent lume, and the practical inclusion of a toolless adjustable clasp. The watch is noted for reliable timekeeping, with accuracy reported between +1 and +6 seconds per day. Some find the hands and indices slim, and one owner desired better contrast on the bezel's zero marker. The RZE Endeavour offers a value proposition with its 200m water resistance and Seiko NH38A movement. Overall, owners and reviewers highly rate the RZE Endeavour for its comfortable, lightweight titanium build and vibrant dial options.

Seiko Prospex Sea 1968 Heritage Diver's GMT

The Seiko Prospex Sea 1968 Heritage Diver's GMT is widely praised for its build quality, finishing, and comfortable wearability, offering good value for its price point. Owners and reviewers highlight the attractive silver/white sunray dial, blue ceramic bezel, and the premium feel of the improved bracelet clasp with excellent micro-adjustment. The Caliber 6R54 movement provides a 72-hour power reserve, and real-world accuracy often exceeds its stated range of +25 to -15 seconds per day, with some owners reporting figures around +3 to +5 seconds per day. However, the caller-style GMT functionality is a point of contention for some, who find the GMT scale difficult to read and prefer a flyer GMT at this price. Some also find the crown position at 4 o'clock undesirable, and a few note a lack of dial contrast or illegibility of the inner bezel.

At a glance

13 of 29 specs differ
Diameter
Endeavour41mm
Prospex Sea 1968 Heritage Diver's GMT42mm
Power Reserve
Endeavour40h
Prospex Sea 1968 Heritage Diver's GMT72h
Water Resistance
Endeavour100m
Prospex Sea 1968 Heritage Diver's GMT200m
MSRP
Endeavour$599
Prospex Sea 1968 Heritage Diver's GMT$1,500

Full specifications

Case

6 specs
Category
Sport
Diver
Diameter
41mm
42mm
Thickness
12.5mm
12.9mm
Lug-to-Lug
46mm
48.6mm
Material
Grade 5 Titanium
Stainless Steel
Water Resistance
100m
200m

Crystal & Dial

3 specs
AR Coating
Underside
Anti-reflective coating on inner surface
Dial Color
Grey
Black
Lume
Super-LumiNova C3
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
Miyota 9039
6R54
Power Reserve
40h
72h
Jewels
25
24

Pricing

1 specs
MSRP
$599
$1,500
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