Seiko Cal. 5661 - 307

The Seiko 5661-307 represents an important milestone in Seiko's 1994 lineup. It features a Burgundy dial protected by a Acrylic crystal and offers 100m of water resistance. [seikata-wm-b9f285803bff]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

38mm

Case Thickness

9.6mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

100m

Dial Color

Burgundy

Jewels

28j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1994

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