Seiko Cal. 6278 - 398

Released in 1972, the Cal. 6278 with design code 398 was part of Seiko's domestic market collection. Powered by the 6278 caliber with 32j jewels beating at 28,800 bph, it delivers a 71 hours power reserve. [seikata-wm-bc490bcdae16]

Also known as: Sea Horse

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

39mm

Case Thickness

10.3mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Cream

Jewels

32j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1972

Related Models

• Seiko 0722-542
• Seiko 7089-644
• Seiko 7065-828
• Seiko 4475-193
• Seiko 5245-452
• Seiko 6361-584
• Seiko 6331-778
• Seiko 4595-217
• Seiko 3816-367
• Seiko 0770-516
• Seiko 3853-561
• Seiko 4578-677