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Seiko

Seiko SNK369K1 Automatic 21 Jewels 37 mm White Dial Stainless Steel Watch

SKU CH-7NBV-KZ0N7 MPN SNK369K1

Automatic 21-jewel movement with 43-hour power reserve, 37 mm stainless steel case, white dial with day-date at 3 o'clock, 30 m water resistance

  • Watch movementMechanical
  • Product shapeRound
  • Watch face colorWhite
  • Dial markingsIndex
  • Display typeAnalog
  • Date displayDate
  • Automatic movement with 21 jewels runs without a battery
  • 43-hour power reserve keeps time off the wrist
  • 37 mm stainless-steel case fits most wrists comfortably
  • Hardlex crystal resists everyday scratches and knocks
  • Date and day window at 3 o'clock for quick reference

Automatic Movement with 21 Jewels

The Seiko SNK369K1 runs on the Calibre 7S26 automatic movement, winding itself through wrist motion. It contains 21 jewels to reduce friction and provides a power reserve of up to 43 hours. A day and date window at 3 o'clock displays both details in English or Spanish. This dress watch suits wearers who prefer mechanical tradition over battery power.

Sustained Daily Wear

The 37 mm stainless steel case measures 11 mm thick and carries a Hardlex crystal rated for 30 m water resistance. An 18 mm stainless steel bracelet secures with a deployment clasp for consistent fit. The movement maintains steady timekeeping across a full day without manual winding. The white dial with red accents and index markers remains legible under office or evening light.

37 mm Case Diameter

A 37 mm case diameter defines the wrist presence and determines whether the proportions suit the buyer. The fixed bezel and pull-push crown keep the profile clean. Buyers needing a larger dial, a screw-down crown or deeper water resistance should consider other models. The 21 jewel automatic engine and 43 hour reserve are fixed specifications.

How it compares

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

Price $152.99
Pricier than about 56% of the 2,679 comparable items (median $130.99).

Specifications

Product
Brand nameSEIKO
Model nameSNK369K1
Design styleDress
Watch face colorWhite
Item conditionNew
Display
Display typeAnalog
Size & build
Main materialStainless Steel
Product shapeRound
Strap materialStainless Steel
Closure typeDeployment Clasp
Bezel typeFixed Bezel
Case constructionPull/Push Crown
Housing materialStainless Steel
Case size37 mm
Watch glassHardlex Crystal
Environment & compliance
Water resistance30m
More details
Watch movementMechanical
Dial markingsIndex
Date displayDate
Suitable forMale

Questions about this item

How much power reserve does the automatic 21-jewel movement give for all-day wear?

The Cal. 7S26 movement stores up to 43 hours of power reserve, so the watch keeps running through a full day and night without winding.

What strap size must the buyer already have if they want to swap the stainless-steel bracelet?

The bracelet uses an 18 mm lug width, so any replacement strap must match that 18 mm width to fit the case.

Will the 37 mm case and 30 m water resistance sit comfortably next to vintage dress watches in a rotation?

At 37 mm diameter and 11 mm thick with 30 m water resistance, it matches classic dress-watch proportions and handles light splashes like older pieces.

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