Side by side

Massena LAB Dato-RacervsSeiko 5 Sports Field series

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

What people say

Owners + reviewers, side by side

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

Massena LAB Dato-Racer

Owners widely praise the Massena LAB Dato-Racer as an excellent everyday watch, appreciating its blend of 1970s-inspired aesthetics with modern dimensions. This model is a limited edition of 99 pieces. On balance, owners rate the Massena LAB Dato-Racer highly for its successful fusion of vintage design and contemporary wearability.

Seiko 5 Sports Field series

The Seiko 5 Sports Field series is praised for its value, offering an accessible explorer-style watch with a GMT complication and excellent legibility thanks to LumiBrite on the dial and bezel. The watches feature a 41mm stainless steel case, 100m water resistance, and are powered by either the 4R36 or 4R34 movement, both with a 41-hour power reserve. One reviewer notes the inclusion of a compass bezel with a lumed pearl and fully lumed Arabic numerals on the dial for the non-GMT models. Overall, reviewers consider the Seiko 5 Sports Field GMT models good value under 500 euros.

At a glance

14 of 29 specs differ
Diameter
Dato-Racer40mm
5 Sports Field series39.4mm
Power Reserve
Dato-Racer38h
5 Sports Field series41h
Water Resistance
Dato-Racer50m
5 Sports Field series100m
MSRP
Dato-Racer$1,595
5 Sports Field series$315

Full specifications

Case

5 specs
Diameter
40mm
39.4mm
Thickness
10.5mm
13.2mm
Lug-to-Lug
0mm
48.1mm
Lug Width
0mm
20mm
Water Resistance
50m
100m

Crystal & Dial

5 specs
Crystal
Sapphire
Hardlex
Crystal Shape
Curved
AR Coating
Yes
Dial Color
Black
Lume
None
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
SW400-1
Seiko 4R36
Power Reserve
38h
41h
Jewels
26
24

Pricing

1 specs
MSRP
$1,595
$315
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