Seiko SSB413 Chronograph – Black Dial with Tachymeter

Key Features

• Quartz chronograph with 1/5-second increments up to 60 minutes

• Tachymeter scale for speed measurement

• 24-hour hand & small seconds sub-dial

• Scratch-resistant sapphire crystal

• LumiBrite on hands and indexes

• 100m water resistance for daily and professional use

• Robust stainless steel case and bracelet with secure three-fold clasp

Case & Build

• Material: Stainless steel case & bracelet

• Case Size: 43.0mm diameter | 11.6mm thickness | 50.4mm lug-to-lug

• Crystal: Sapphire crystal

• Clasp: Three-fold clasp with push-button release

• Case Back: Screw case back

• Weight: 158g

Dial & Visibility

• Black dial with contrasting chronograph sub-dials

• Tachymeter bezel for practical timing functions

• LumiBrite on hands and indexes for low-light visibility

Movement

• Caliber: 8T63 (Quartz)

• Accuracy: ±15 seconds per month

• Functions:

  • 24-hour hand

  • Small seconds hand

  • Chronograph (60 minutes, 1/5 sec increments)

  • Date display

• Battery Life: Approx. 3 years

Durability

• Water Resistance: 10 bar (100m) – suitable for swimming and snorkeling

• Magnetic Resistance: Standard

• Crystal: Sapphire for enhanced scratch resistance

• Warranty: 3 years