Seiko Cal. 5660 - 307

The Seiko 5660-307 represents an important milestone in Seiko's 1986 lineup. With its 22mm lug width and 10.6mm profile, it sits comfortably on most wrists. [seikata-wm-7bbea45f71fe]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

10.6mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Black

Jewels

20j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1986

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