Seiko Cal. 5657 - 774

The Seiko 5657-774 represents an important milestone in Seiko's 1968 lineup. Powered by the 5657 caliber with 24j jewels beating at 36,000 bph, it delivers a 49 hours power reserve. [seikata-wm-b55a429ffb04]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

42mm

Case Thickness

14.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

190m

Dial Color

Cream

Jewels

24j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1968

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