Seiko Cal. 5661 - 402

The Seiko 5661-402 represents an important milestone in Seiko's 1968 lineup. It features a Silver dial protected by a Hardlex crystal and offers 90m of water resistance. [seikata-wm-dcd1690a2c2f]

Also known as: World Timer

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

35mm

Case Thickness

12.8mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

90m

Dial Color

Silver

Jewels

36j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1968

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