Seiko Cal. 5665 - 320

The 5665-320 is a sought-after Spring Drive piece from Seiko's golden era. It features a Navy dial protected by a Acrylic crystal and offers 120m of water resistance. [seikata-wm-b8a452c11dfe]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

14.7mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Navy

Jewels

36j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1974

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