Seiko Cal. 5661 - 594

This Hand-Winding model from 1988 features a 40mm Stainless Steel case. It features a Blue Sunburst dial protected by a Mineral crystal and offers 140m of water resistance. [seikata-wm-3f732375bb73]

Also known as: Bellmatic, Crown

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

9.0mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1988

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