Seiko Cal. 5280 - 366

The Seiko 5280-366 represents an important milestone in Seiko's 1972 lineup. It features a Silver dial protected by a Mineral crystal and offers 110m of water resistance. [seikata-wm-47b120e24c1a]

Also known as: Bullhead, Arnie

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

40mm

Case Thickness

13.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Silver

Jewels

26j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1972

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