Seiko Cal. 5657 - 416

The Seiko 5657-416 represents an important milestone in Seiko's 1980 lineup. Powered by the 5657 caliber with 35j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-d203eec2ee54]

Also known as: Golden Tuna, Flighty

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

40mm

Case Thickness

13.8mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

White

Jewels

35j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1980

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