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Stainless steel round watch black dial unidirectional bezel bracelet deployment clasp

Seiko

Seiko 5 Sports Automatic Japan Made SNZB23J1 Men's Watch

SKU CH-2ABR-D6VQR

A Japanese-made automatic sports watch with a 39.00 mm stainless steel case, Hardlex crystal, 100 m water resistance and a 23-jewel 7S36 movement

  • Watch movementAutomatic
  • Product shapeRound
  • Watch face colorBlack
  • Dial markingsIndex
  • Display typeAnalog
  • Date displayDate
  • Japan-made automatic calibre 7S36 with 23 jewels
  • 100 m water resistance suits swimming and snorkelling
  • Hardlex crystal protects the black dial from daily knocks
  • Stainless steel case and bracelet with deployment clasp
  • Unidirectional bezel times dives and intervals reliably

Japan-Made Automatic Sports Watch

The Seiko 5 Sports SNZB23J1 is a Japan-made automatic wristwatch built for daily wear. Its stainless steel case and bracelet house a 23-jewel 7S36 calibre that winds from wrist motion. A unidirectional bezel and 100 m water resistance suit active use, while the black dial shows day and date at three o'clock.

Sustained Daily Operation

The automatic movement runs continuously while worn, storing roughly 36 hours of power reserve when activity stops. Hardlex crystal protects the dial from everyday knocks, and the screw-down crown maintains the 100 m rating during swimming or showering. No battery changes are required, so long-term reliability depends on regular wear or occasional manual winding.

Straightforward Strap Adjustment

The stainless steel bracelet uses a deployment clasp with push-button release for secure one-handed fastening. Links must be removed with a pin tool or by a watchmaker to fit smaller wrists, which is the most common fit issue. The 39.00 mm case thickness sits close to the wrist, reducing snag risk under cuffs. Buyers needing a lighter titanium case or a rubber strap for extreme sports should look elsewhere.

How it compares

Measured against everything we stock in Analog & Digital Wristwatches, at today’s prices. Recalculated every night.

Price $184.99
Pricier than about 66% of the 2,679 comparable items (median $130.99).

Specifications

Product
Brand nameSeiko
Design styleSports
Watch face colorBlack
Item conditionNew
Display
Display typeAnalog
Size & build
Main materialStainless Steel
Product shapeRound
Strap materialStainless Steel
Closure typeDeployment Clasp
Bezel typeUnidirectional Bezel
Housing materialStainless Steel
Case size39 mm
Watch glassHardlex Crystal
Environment & compliance
Water resistance100m
More details
Watch movementAutomatic
Dial markingsIndex
Date displayDate
Suitable forMale

Questions about this item

Does the 7S36 automatic movement generate noticeable heat or noise when worn all day?

The 7S36 automatic calibre runs from wrist motion, so it produces no audible rotor whine and no measurable heat on the wrist during continuous daily wear.

What strap tools or spring bars are required to adjust the stainless steel bracelet with its deployment clasp?

The bracelet uses standard spring bars; a fine spring-bar tool lets you remove links for sizing without any proprietary parts.

Will the 39.00 mm case and Hardlex crystal sit flush under the cuff of an older dress shirt?

At 39.00 mm diameter the case profile is slim enough to slide under most traditional shirt cuffs without catching on the Hardlex crystal.

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