Seiko Cal. 6661 - 597

The Seiko 6661-597 represents an important milestone in Seiko's 1995 lineup. It features a White dial protected by a Mineral crystal and offers 170m of water resistance. [seikata-wm-6e0b6aa72d2d]

Also known as: Tuna, World Timer

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

12.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

White

Jewels

31j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1995

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