Seiko Cal. 5657 - 412

The Seiko 5657-412 represents an important milestone in Seiko's 1973 lineup. Powered by the 5657 caliber with 17j jewels beating at 28,800 bph, it delivers a 54 hours power reserve. [seikata-wm-b5b6d40c4019]

Also known as: Rally, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

37mm

Case Thickness

11.8mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Navy

Jewels

17j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1973

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