Seiko Cal. 5251 - 161

The Seiko 5251-161 represents an important milestone in Seiko's 1969 lineup. Powered by the 5251 caliber with 29j jewels beating at 28,800 bph, it delivers a 72 hours power reserve. [seikata-wm-294cc0c0f767]

Also known as: Navigator, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

10.3mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

70m

Dial Color

Navy

Jewels

29j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1969

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