Seiko Cal. 4421 - 165

The Seiko 4421-165 represents an important milestone in Seiko's 1968 lineup. It features a Green dial protected by a Mineral crystal and offers 110m of water resistance. [seikata-wm-f30ac842d86e]

Also known as: Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

38mm

Case Thickness

15.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

110m

Dial Color

Green

Jewels

25j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1968

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