Specht & Sohne Specht & Söhne SP0004 AutomaticvsTedoro Harmony 36mm Stainless Steel Seiko NH35A
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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.

Specht & Söhne SP0004 Automatic

Harmony 36mm Stainless Steel Seiko NH35A
Diameter
37mm
36mm
Lug-to-Lug
44mm
n/a
Thickness
11mm
n/a
Water Resistance
50m
100m
highest
Power Reserve
42h
highest
41h
MSRP
$243
lowest
$495
Movement
Seiko NH35
Seiko NH35
Case
6 specsCrystal & Dial
1 specsMovement
1 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Specht & Sohne Specht & Söhne SP0004 Automatic for its excellent build quality and substantial 150g weight, which conveys a sense of quality. The inclusion of a zippered case and link removal tool is also noted. On balance, owners rate the Specht & Sohne Specht & Söhne SP0004 Automatic highly for its robust build and the included accessories.
Owners widely report accuracy figures for the Tedoro Harmony 36mm Stainless Steel Seiko NH35A ranging from +4 to +5 seconds per day, with some finding this performance superior to other Seiko movements. The watch features a 36mm case and is powered by the reliable Seiko NH35A automatic movement. One builder noted the use of gold hour and minute hands from an Invicta Pro Diver in a custom build. Overall, owners rate the Tedoro Harmony 36mm Stainless Steel Seiko NH35A highly for its reliable movement and accurate timekeeping at its price point.
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