Side by side

Seiko Prospex SeavsLongines SPIRIT ZULU TIME 1925

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

Prospex Sea
SeikoProspex Sea
MSRP $1,100
SPIRIT ZULU TIME 1925
LonginesSPIRIT ZULU TIME 1925
MSRP $4,700

At a glance

20 of 29 specs differ
Diameter
Prospex Sea41.3mm
SPIRIT ZULU TIME 192539mm
Power Reserve
Prospex Sea72h
SPIRIT ZULU TIME 192572h
Water Resistance
Prospex Sea300m
SPIRIT ZULU TIME 1925100m
MSRP
Prospex Sea$1,100
SPIRIT ZULU TIME 1925$4,700

Full specifications

Case

9 specs
Category
Diver
GMT
Diameter
41.3mm
39mm
Thickness
12.5mm
13.5mm
Lug-to-Lug
48.2mm
46.8mm
Lug Width
20mm
21mm
Material
Stainless Steel
Gold
Finish
Brushed and polished
Water Resistance
300m
100m
Caseback
Solid
Transparent case back with sapphire crystal

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Anti-reflective coating on inner surface
Both sides
Indices
Applied
Applied Arabic numerals
Lume
LumiBrite on hands, index(es) and bezel
Super-LumiNova

Movement

6 specs
Caliber
6R55
L844.4
Beat Rate
28,800 vph
25,200 vph
Jewels
24
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
Hours, minutes, seconds and date, 24 hours hand with time zone mechanism

Pricing

1 specs
MSRP
$1,100
$4,700

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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 Sea

Seiko Prospex Sea models are widely praised for their excellent build quality, value for money, and comfortable wearability, with many appreciating the vintage-inspired designs and robust construction. Owners note the silicone straps are surprisingly comfortable and well-finished, and the Lumibrite lume is excellent. However, some find the 44.3mm size and thickness too large for smaller wrists, though others report the sizing as perfect. The 6R15 movement in some variants offers accuracy around +4 seconds per day with a 50-hour power reserve, while newer movements offer more. Some models are criticized for a bracelet width not matching the case size or a rudimentary clasp for their price point. Overall, owners and reviewers rate the Seiko Prospex Sea highly for its impressive case work and finishing at its price point.

Longines SPIRIT ZULU TIME 1925

The Longines SPIRIT ZULU TIME 1925 is widely praised for its handsome, vintage-inspired two-tone aesthetic, featuring a rose-gold capped bezel and dial accents, and is noted for its segment-leading finishing and solid feel. Owners and reviewers highlight the pleasing combination of precious metal with a rugged character. The watch is powered by the ETA-produced L844.4 automatic GMT movement, which is COSC chronometer certified and offers a 72-hour power reserve, visible through a sapphire caseback. Some reviewers flag the 13.5mm thickness as substantial, and the male endlinks may affect wearability on smaller wrists. The Longines SPIRIT ZULU TIME 1925 is priced at approximately $4,350 and includes a bracelet and an additional NATO strap. Overall, owners and reviewers rate the Longines SPIRIT ZULU TIME 1925 highly for its refined vintage-inspired design and excellent finishing at its price point.

From video reviewers

The Spirit Zulu Time 1925 features excellent finishing and a true GMT function. Reviewers questioned the value proposition due to the rose gold being a cap rather than solid.

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