Seiko Cal. 6398 - 435

The 6398-435 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6398 caliber with 33j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-701fcd90decb]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

45mm

Case Thickness

10.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

40m

Dial Color

Black

Jewels

33j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1982

Related Models

• Seiko 6252-625
• Seiko 6669-599
• Seiko 0728-364
• Seiko 6611-426
• Seiko 7087-411
• Seiko 4540-305
• Seiko 6261-965
• Seiko 3826-186
• Seiko 3885-738
• Seiko 6137-170
• Seiko 0716-153
• Seiko 5211-348