Seiko Cal. 6657 - 435

This Kinetic model from 1969 features a 36mm Two-Tone case. It features a Green dial protected by a Sapphire crystal and offers 50m of water resistance. [seikata-wm-ccd38f9b638a]

Also known as: World Timer, Baby Tuna

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

36mm

Case Thickness

15.3mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Green

Jewels

25j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1969

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