Seiko Cal. 5657 - 978

Seiko 5657-978

The Seiko 5657-978 represents an important milestone in Seiko's 1981 lineup. Powered by the 5657 caliber with 24j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-f2aea08cd899]

Also known as: Turtle

Specifications

Movement
Kinetic
Case Material
Two-Tone
Case Width
36mm
Case Thickness
11.2mm
Lug Width
18mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
110m
Dial Color
Silver
Jewels
24j
Frequency
36,000 bph
Power Reserve
36 hours
Year
1981

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