Seiko Cal. 5661 - 381

The Seiko 5661-381 represents an important milestone in Seiko's 1977 lineup. It features a Champagne dial protected by a Mineral crystal and offers 80m of water resistance. [seikata-wm-e39f4e5c1aff]

Also known as: Emperor

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

11.7mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Champagne

Jewels

31j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1977

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