Seiko Cal. 5661 - 727

The Seiko 5661-727 represents an important milestone in Seiko's 1985 lineup. It features a Silver dial protected by a Sapphire crystal and offers 140m of water resistance. [seikata-wm-dfd01f27a559]

Also known as: Monster, Shogun

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

13.3mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Silver

Jewels

28j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1985

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