Seiko Cal. 6251 - 856

The Seiko 6251-856 represents an important milestone in Seiko's 1978 lineup. Powered by the 6251 caliber with 29j jewels beating at 36,000 bph, it delivers a 44 hours power reserve. [seikata-wm-773d3b6d6fb4]

Also known as: Navigator, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

11.5mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Cream

Jewels

29j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1978

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