Side by side

Oak & Oscar The Humboldt Seven YearvsSerica Réf. 5303 PLD

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

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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.

Oak & Oscar The Humboldt Seven Year

Oak & Oscar The Humboldt Seven Year owners note the hand-machined brass bezel and hand-finished dial. One owner reports the Sellita SW300 movement timed at -5 seconds per day, and another owner observed minor imperfections on the dial and crystal, along with a small ding on a lug. On balance, owners appreciate the unique dial and bezel finishing, though some minor cosmetic flaws have been noted.

Serica Réf. 5303 PLD

Owners widely praise the Serica Réf. 5303 PLD for its sophisticated design and refined finishing that exceeds its price point, noting its ability to blend dress and tool watch aesthetics and wear thinly under cuffs. One owner reports the screw-down crown has loosened during wear, raising concerns for dive-use integrity, while another questions the practicality of the no-deco dive scale for specialized diving. Reviewers find the 39mm case wears slightly small and note the mesh bracelet feels dainty for a military-themed watch. Overall, owners and reviewers rate the Serica Réf. 5303 PLD highly for its elegant finishing and versatile design that punches above its weight class.

At a glance

15 of 29 specs differ
Diameter
The Humboldt Seven Year39.5mm
Réf. 5303 PLD39mm
Power Reserve
The Humboldt Seven Year42h
Réf. 5303 PLD42h
Water Resistance
The Humboldt Seven Year200m
Réf. 5303 PLD300m
MSRP
The Humboldt Seven Year$2,400
Réf. 5303 PLD$1,974

Full specifications

Case

6 specs
Category
Tool
Diameter
39.5mm
39mm
Thickness
12.4mm
12.2mm
Lug-to-Lug
46.8mm
46.5mm
Material
316L Stainless Steel + Brass
Stainless Steel
Water Resistance
200m
300m

Crystal & Dial

4 specs
Crystal Shape
Double-domed
AR Coating
Underside
Dial Color
Lume
Super-LumiNova
None

Movement

4 specs
Caliber
Sellita SW300-1
Soprod M100
Beat Rate
4 vph
0 vph
Jewels
25
0
Complications
GMT, Chronograph, Date
None

Pricing

1 specs
MSRP
$2,400
$1,974
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