Side by side

Spinnaker Cahill AutomaticvsTudor 1926 Luna

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

Cahill Automatic
SpinnakerCahill Automatic
MSRP $350
1926 Luna
Tudor1926 Luna
MSRP $3,000

At a glance

20 of 29 specs differ
Diameter
Cahill Automatic42mm
1926 Luna39mm
Power Reserve
Cahill Automatic40h
1926 Luna38h
Water Resistance
Cahill Automatic200m
1926 Luna100m
MSRP
Cahill Automatic$350
1926 Luna$3,000

Full specifications

Case

9 specs
Category
Diver
Moonphase
Diameter
42mm
39mm
Thickness
13.7mm
10.1mm
Lug-to-Lug
51mm
46mm
Lug Width
22mm
21mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed and polished
Polished
Water Resistance
200m
100m
Caseback
Solid
Solid screw-down

Crystal & Dial

3 specs
Crystal Shape
Flat
AR Coating
Inner
Dial Color
Green

Movement

7 specs
Caliber
SII NH35A
T607-
Beat Rate
28,800 vph
0 vph
Power Reserve
40h
38h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
Moonphase

Pricing

1 specs
MSRP
$350
$3,000

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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.

Spinnaker Cahill Automatic

Owners widely praise the Spinnaker Cahill Automatic for its attractive vintage-inspired design, comfortable wearability on smaller wrists, and good timekeeping, with one owner specifically noting the large "maxi" indices and NATO strap as highlights. However, some find the lume application uneven and note the use of a mineral crystal. A significant concern raised by one owner is a report of internal component failures and a perceived lack of quality control within the brand. On balance, the Spinnaker Cahill Automatic is well-regarded by owners for its style and value, particularly at specific price points, despite some noted manufacturing inconsistencies.

Tudor 1926 Luna

The Tudor 1926 Luna offers a moonphase complication at an approachable price, featuring a 39mm polished steel case and domed sunray dials. It is powered by a chronometer-grade Sellita SW280-1 movement with a 41-hour power reserve. Some reviewers note that the dressier aesthetic of the 1926 line may not align with Tudor's overall brand identity, and the bracelet lacks micro-adjustments. Overall, owners and reviewers find the Tudor 1926 Luna a good value for its romantic moonphase complication and polished finishing.

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