Echo/Neutra 1956 3HvsSerica Ref. 5330 Diving Chronometer Date

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Measurements

Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Echo/Neutra 1956 3H at true scale

1956 3H

Serica Ref. 5330 Diving Chronometer Date at true scale

Ref. 5330 Diving Chronometer Date

Diameter

40mm

39mm

Lug-to-Lug

46mm

lowest

46.5mm

Thickness

11.9mm

lowest

12.2mm

Water Resistance

100m

300m

highest

Power Reserve

41h

42h

highest

MSRP

$1,025

lowest

$2,005

Movement

Sellita SW200-1

Soprod M100

Case

8 specs
Diameter
40mm
39mm
Thickness
11.9mm
12.2mm
Lug-to-Lug
46mm
46.5mm
Lug Width
n/a
20mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed + Polished
n/a
Water Resistance
100m
300m
Caseback
Solid screw-down
n/a

Crystal & Dial

3 specs
Crystal Shape
Ultra-domed
n/a
AR Coating
Underside
Yes
Lume
Superluminova Old Radium
Super-LumiNova

Movement

5 specs
Caliber
Sellita SW200-1
Soprod M100
Beat Rate
28,800 vph
0 vph
Power Reserve
41h
42h
Jewels
26
0
Complications
GMT, Moonphase, Date
COSC, Date

Pricing

1 specs
MSRP
$1,025
$2,005
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Reviews

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

Echo/Neutra 1956 3H

Owners widely praise the Echo/Neutra 1956 3H for its exceptionally well-executed bracelet, with one owner comparing it favorably to a Rolex Oyster. The watch is noted for its unique blend of vintage tool-watch and mid-century design, featuring a dramatic box-domed sapphire crystal and a gray dial that exceeds build quality expectations. Legibility in low light presents a challenge due to the fixed, lumed bezel and non-lumed dial, and some may find the branding off-putting. Overall, owners rate the Echo/Neutra 1956 3H highly for its unique character and comfortable wearability, driven by its exceptional bracelet and distinctive design.

From video reviewers

The case finishing and vintage aesthetic are consistently praised. The 100m water resistance and Sellita SW200-1 movement are also noted strengths. Reviewers did not reach a consensus on any weaknesses.

Serica Ref. 5330 Diving Chronometer Date

Owners widely report positive accuracy with the Soprod M100 movement, with one noting +1-2 seconds per day over three years. The Serica Ref. 5330 Diving Chronometer Date features a comfortable 39mm case and a twin-scale bezel. Some owners have experienced significant quality control issues, including dials moving when the crown is pulled and misaligned bezels, alongside inconsistent customer service experiences. The watch retails for €1,690 and includes both a mesh and elastic strap. On balance, owners and reviewers praise the Serica Ref. 5330 Diving Chronometer Date for its comfortable 39mm size and accurate Soprod M100 movement, despite some quality control and customer service concerns.