Seiko Cal. 5661 - 600

The Seiko 5661-600 represents an important milestone in Seiko's 1985 lineup. It features a Black dial protected by a Mineral crystal and offers 50m of water resistance. [seikata-wm-bdab0b574b18]

Also known as: Samurai, Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

46mm

Case Thickness

13.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Black

Jewels

27j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1985

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