Maurice de Mauriac Racquet Rallymaster IVvsSeiko King Seiko KSK

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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.

Racquet Rallymaster IV

King Seiko KSK
Diameter
39mm
38.6mm
Lug-to-Lug
n/a
45.8mm
Thickness
12mm
10.7mm
lowest
Water Resistance
100m
highest
50m
Power Reserve
40h
45h
highest
MSRP
$2,400
lowest
$3,300
Movement
Landeron 24
Seiko 6L35
Case
6 specsCrystal & Dial
4 specsMovement
3 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
The Maurice de Mauriac Racquet Rallymaster IV is praised for its sporty intent, daily wearer appeal, and unique character. Owners and reviewers highlight its wearable 39mm size and the distinctive design, often noting the vibrant dial accents and tennis-themed motifs. Some sources mention the Landeron 24 automatic movement and a power reserve of approximately 40 hours. The watch is available in a black PVD case or stainless steel, with prices ranging from $1,950 to $2,750 or CHF 2,200. On balance, owners and reviewers rate the Maurice de Mauriac Racquet Rallymaster IV highly for its playful design and comfortable wearability.
The Seiko King Seiko KSK is praised for its slim, retro design with sharply faceted lugs and well-executed dials, featuring a mix of brushed and polished finishes. Owners and reviewers consistently highlight the Grand Seiko-level dial and case finishing, the double-bevel sapphire crystal, and an unusually nice bracelet. Accuracy figures vary, with one owner reporting +5 to +7 seconds per day and another noting +15/-10 seconds per day for the 6L35 movement. Some owners question the value proposition at its price point, particularly when considering the movement. Overall, owners and reviewers appreciate the King Seiko KSK for its refined retro aesthetic and high-quality finishing, despite some reservations about its price and movement in certain configurations.
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