Seiko Cal. 4437 - 363

This Automatic model from 1986 features a 38mm Two-Tone case. Powered by the 4437 caliber with 31j jewels beating at 21,600 bph, it delivers a 56 hours power reserve. [seikata-wm-eb18d4f27591]

Also known as: Golden Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

38mm

Case Thickness

14.6mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

160m

Dial Color

Champagne

Jewels

31j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1986

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