This is the original replacement watch strap for the Seiko 6309 5820 - SDED13 5

This watch band / bracelet is suitable for the following model numbers:

SDED13, SDED15

SDED13J1, SDED13P1, SDED13K, SDED15J1, SDED15P1, SDED15K

This watch strap is suitable for the following case numbers:

6309-5820, 63O9 582O

Product specifications:

Brand: Seiko

Article number: B1079S

Model number (s): SDED13, SDED15

Material of the watchband: stainless steel

Color(s) of the watchband: grey,

Width at fitting (Lug width): 19 mm

Width at the widest part of the watchstrap: 19 mm

Width of the strap at clasp-side: 16 mm

Total strap length: 170 mm

End-pieces (end-links): Included

End-piece-reference: B1079S EP

Extension-link reference: B1079S LK

Watchband type: Jubilee bracelet

Type of clasp: Fold-over-clasp

Material of the clasp: stainless steel

Color of the clasp: grey

Seiko clasp-reference: 31H5LG BK

Type of case-pins: Springbar - (NOT included)

Seiko case-pin reference: S190CS - (See related products)

Print / version: combination gloss/matted

Other references: B10 79 - Japan made