Side by side

Massena LAB Dato-RacervsGrand Seiko SLGW005

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

Dato-Racer
Massena LABDato-Racer
MSRP $1,595
SLGW005
Grand SeikoSLGW005
MSRP $9,700

At a glance

11 of 29 specs differ
Diameter
Dato-Racer40mm
SLGW00538.8mm
Power Reserve
Dato-Racer38h
SLGW00580h
Water Resistance
Dato-Racer50m
SLGW00530m
MSRP
Dato-Racer$1,595
SLGW005$9,700

Full specifications

Case

6 specs
Category
Sport
Dress
Diameter
40mm
38.8mm
Thickness
10.5mm
10.4mm
Lug-to-Lug
46mm
43.7mm
Lug Width
20mm
19mm
Water Resistance
50m
30m

Movement

4 specs
Caliber
SW400-1
9SA4
Type
Automatic
Manual
Power Reserve
38h
80h
Jewels
26
25

Pricing

1 specs
MSRP
$1,595
$9,700

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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.

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.

Grand Seiko SLGW005

The Grand Seiko SLGW005 is lauded for its faithful recreation of the 1968 45GS, featuring a desirable double-signed dial and a beautifully finished case adhering to the Grammar of Design. It is powered by the new 9SA4 manual-winding, high-beat movement, offering an 80-hour power reserve and a mean daily rate of -3/+5 seconds. Owners consider it a "gloriously perfect" and "pure and elegant expression" of Grand Seiko's strengths, with one owner preferring its creamy dial over a more pronounced beige found on other models. Overall, owners and reviewers rate the Grand Seiko SLGW005 highly for its elegant design and impressive high-beat movement.

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