lug2lug
BrowseCompareNewsCommunityMy Watches
BrowseCompareNewsCommunityMy Watches
Theme
Popular microbrands:Christopher Ward·Baltic·anOrdain·Atelier Wen·Boldr·Bremont·Dan Henry·DOXABrowse all →
Best, by the specs:Diver under $2,000·Dress under $5,000·Chronograph under $5,000·Best sport watches·GMT under $5,000·Field under $500·Pilot under $2,000·Casual under $1,000All rankings →
Glossary:Lug-to-Lug·Water Resistance·Chronograph·GMT·Automatic·LumeBrowse all →
Tools:Collection tracker·Wrist-fit calculator·Selling calculator·What should I buy?·Market index·iPhone app
Lug2Letter
Watches worth knowing about, weekly.
Curated discoveries, founder spotlights, and the occasional deep-dive.
Get the app
Download on theApp StoreGET IT ONGoogle Play
TermsPrivacyDelete accountCopyrightDisclosuresContactContribute

Independent reference site · not affiliated with any brand · contains affiliate links

© 2026 Lug2Lug LLC · Prices are estimates and not offers

Loading watch
Home/Browse/STEELDIVE/SD1930 No Date
SpecStudio
STEELDIVE SD1930 No Date
Click to inspect
STEELDIVE

STEELDIVE SD1930 No Date

Ref. SD1930

$124Stock unknown

Case

Diameter
43mm
Thickness
12.25mm
Lug-to-lug
53.65mm
Lug width
22mm
Material
Ceramic
Water resistance
200m

Crystal & dial

Crystal
Sapphire

Movement

Caliber
Seiko NH35
Type
Automatic

Seiko

Seiko's third-party supply version of the 4R35, sold to external watch brands and modders worldwide. Adds hacking and hand-winding over the 7S26 it effectively replaced. The NH35 has become the default automatic movement for watch modding and microbrand watches, thanks to its low cost, reliability, and wide availability of compatible parts including dials, hands, and cases in the Seiko-compatible format.

Design language

Case shape
round
Dial style
matte
Bezel
none
Bracelet
fabric_nato

AI-detected from the product image

Alternatives

01The market

Market prices.

Retail$124

No forum listings recorded for this watch yet.

02The connection engine

More like this.

Lum-Tec Combat B73

Lum-Tec

Combat B73

43mm · Automatic$545

Noctua Watch Corp. Sentinel

Noctua Watch Corp.

Sentinel

42mm · Automatic$429

Zelos Hammerhead V3 300m

Zelos

Hammerhead V3 300m

44mm · Automatic$449

Spinnaker Tesei Titanium

Spinnaker

Tesei Titanium

42mm · Automatic$625

Zelos Horizons 43mm

Zelos

Horizons 43mm

43mm · Automatic$549

Borealis Watch Co. Caloura 300m

Borealis Watch Co.

Caloura 300m

42mm · Automatic$275

View all alternatives

03The community take

Owners talk.

“
In a nutshell

The STEELDIVE SD1930 No Date (ref. SD1930) is an automatic watch, with a 43mm ceramic case, 12.25mm thick, powered by the Seiko NH35 movement. Water resistance is rated to 200m, under a sapphire crystal. Manufacturer MSRP is $124.

Open the discussion

On real wrists

No shots yet. Show how it wears.

04The paper trail

Ask the communityStart a discussion about the SD1930 No Date: get takes from other collectors.Ask →

05The discussion

Talk about the STEELDIVE SD1930 No Date.