Seiko Cal. 5664 - 187

The 5664-187 is a sought-after Quartz piece from Seiko's golden era. It features a Navy dial protected by a Mineral crystal and offers 80m of water resistance. [seikata-wm-b157ebc0a7e2]

Also known as: Tuna

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

15.6mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Navy

Jewels

35j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1985

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