Side by side

Massena LAB Dato-RacervsMarathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic

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

Dato-Racer
Massena LABDato-Racer
MSRP $1,595
JDD (Jumbo Day/Date) Anthracite Diver's Automatic
MarathonJDD (Jumbo Day/Date) Anthracite Diver's Automatic
MSRP $3,250

At a glance

13 of 29 specs differ
Diameter
Dato-Racer40mm
JDD (Jumbo Day/Date) Anthracite Diver's Automatic46mm
Power Reserve
Dato-Racer38h
JDD (Jumbo Day/Date) Anthracite Diver's Automatic40h
Water Resistance
Dato-Racer50m
JDD (Jumbo Day/Date) Anthracite Diver's Automatic300m
MSRP
Dato-Racer$1,595
JDD (Jumbo Day/Date) Anthracite Diver's Automatic$3,250

Full specifications

Case

7 specs
Category
Sport
Diver
Diameter
40mm
46mm
Thickness
10.5mm
18mm
Lug-to-Lug
46mm
55mm
Lug Width
20mm
22mm
Material
Stainless Steel
316L Stainless Steel (Anthracite IP)
Water Resistance
50m
300m

Crystal & Dial

2 specs
AR Coating
Yes
Inner
Dial Color
Black
Anthracite

Movement

3 specs
Caliber
SW400-1
Sellita SW220-1
Power Reserve
38h
40h
Jewels
26
25

Pricing

1 specs
MSRP
$1,595
$3,250

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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.

Marathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic

Owners widely praise the Marathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic as a tough, underrated tool watch with lifestyle appeal, highlighting its robust build and tritium lume for excellent legibility. However, its 46mm size is a common criticism, with some finding it heavy and top-heavy, and the OEM rubber strap stiff. One owner noted the watch runs about 10 seconds fast after three days, and the ETA 2836-2 movement offers approximately two days of power reserve. On balance, owners and reviewers rate the Marathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic highly for its robust tool-watch build and legibility, despite its substantial size.

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