Neptune

Entry-level Under $600

The Lorier Neptune Series IV is a New York microbrand's vintage-inspired automatic diver, pairing a 39mm 316L stainless steel case with a domed Hesalite crystal, 120-click unidirectional bezel, and 200m water resistance. It draws on 1950s–70s diving references with gilt broad-arrow hands, oversized lume plots, and a period-correct luminous acrylic bezel insert.

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39mm

Case

200m

Water res.

12.7mm

Thick

46mm

Lug-to-lug

Overview

Brand	Lorier
Collection	Neptune
Category	Dive
Released	2023
Price guide	Entry-level · Under $600

Full specification

Specs

Case & dial

Diameter	39 mm
Lug-to-lug	46 mm
Thickness	12.7 mm
Lug width	20 mm
Water resistance	200 m
Crystal	hesalite domed acrylic
Case material	stainless steel
Bezel	unidirectional dive, 120-click, luminous acrylic insert
Case back	solid

Movement & furniture

Type	Automatic
Caliber	Miyota 90S5 →
Power reserve	42 h
Jewels	24
Lume	BGW9 Super-LumiNova
Strap / bracelet	stainless steel flat-link bracelet

On the wrist

Strapping on the Neptune SIV, the first thing that registers is scale — 39mm and 46mm lug-to-lug means it genuinely disappears on anything larger than a medium wrist. That is a deliberate choice, and it pays off: the proportions feel cohesive and historically honest rather than undersized for modern tastes.

The domed Hesalite creates a magnifying pool that makes the gilt broad-arrow hands seem to float in depth above the black lacquer dial. Lume plots are generous and warm — BGW9 blazes greener than the cream-gilt daytime palette suggests. The acrylic bezel insert is visually correct to the period and adds luminous markings no vintage reference could manage, though it will scratch more easily than ceramic. The flat-link bracelet is tighter and more elegant in the hand than its price implies, tapering to 16mm with solid end-links and a toolless clasp. The overall character is unhurried and deliberate: this is a watch that rewards close inspection rather than demanding attention across a room.

Bottom line

A convincingly period-correct microbrand diver that packs genuine design conviction and impressive finish quality into the $599 tier, though the Hesalite crystal and small-batch supply cadence are real trade-offs buyers should weigh.

Highlights

Domed Hesalite crystal (polishable, period-correct)
Luminous acrylic bezel insert
Compact 39mm / 46mm L2L
200m + screw-down crown
Miyota 90S5 with hacking and hand-winding

Who it's for

Buyers with 6.5–7.5-inch wrists who want a historically-proportioned no-date diver with 1950s-era aesthetics — gilt hands, oversized lume plots, a domed crystal — without vintage-market uncertainty or a steep entry price. Also suits microbrand enthusiasts who appreciate deliberate design choices and are comfortable with small-batch availability.

Who should skip it

Skip it if you prefer a scratch-resistant sapphire crystal, need reliable in-stock availability, or want a date complication on the same no-date movement.

Before you buy

Collection listed as 'returning mid-2026' — confirm live stock before ordering
Date and no-date variants use different movements (Miyota 9015 vs 90S5) — verify variant at checkout
Hesalite scratches more readily than sapphire — factor in periodic PolyWatch polishing
Sold in limited batches that sell out quickly; secondary-market prices can vary

FAQ

Is the Neptune automatic or quartz?

It runs a automatic movement.

What movement does the Neptune use?

The Miyota 90S5 (Miyota).

Does the Neptune have a date?

No.

How water resistant is the Neptune?

It is rated to 200 m.

How big does the Neptune wear?

39 mm wide with a 46 mm lug-to-lug.

How does the Neptune SIV compare to a Seiko SPB or Orient Kamasu at similar money?

The Neptune prioritises vintage aesthetics — domed Hesalite, gilt details, luminous acrylic bezel — over the sapphire crystals and in-house movements those alternatives offer; it wins on period character and bracelet finish but concedes scratch-resistance and constant stock availability.

Is the Hesalite crystal a compromise or a deliberate design choice?

Deliberate — Lorier cites better optical depth, impact resistance, and the ability to polish out scratches as advantages over sapphire for a vintage-inspired watch, matching how 1950s–70s divers were actually built.

Are earlier Neptune series worth buying secondhand?

Series III uses the same Miyota 90S5 and is visually similar but has slightly longer lugs (≈47mm vs 46mm) and no luminous bezel insert; Series I/II used a Seiko NH35A and typically sell for noticeably less on the grey market.