Seiko Cal. 5660 - 727

The Seiko 5660-727 represents an important milestone in Seiko's 1987 lineup. It features a Silver dial protected by a Mineral crystal and offers 30m of water resistance. [seikata-wm-f86d8781d339]

Also known as: Sportsmatic, Emperor

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

36mm

Case Thickness

15.4mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Silver

Jewels

28j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1987

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