Seiko Cal. 6351 - 778

The Seiko 6351-778 represents an important milestone in Seiko's 1981 lineup. Powered by the 6351 caliber with 33j jewels beating at 28,800 bph, it delivers a 69 hours power reserve. [seikata-wm-f28334b5928d]

Also known as: Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

39mm

Case Thickness

13.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

110m

Dial Color

White

Jewels

33j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1981

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