Seiko Cal. 6378 - 334

Released in 1985, the Cal. 6378 with design code 334 was part of Seiko's domestic market collection. Powered by the 6378 caliber with 25j jewels beating at 28,800 bph, it delivers a 68 hours power reserve. [seikata-wm-d08f5d9f93b2]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

46mm

Case Thickness

14.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

100m

Dial Color

Navy

Jewels

25j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1985

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