Seiko Cal. 6390 - 177

This Hand-Winding model from 1966 features a 45mm Two-Tone case. It features a Burgundy dial protected by a Mineral crystal and offers 90m of water resistance. [seikata-wm-9b9bf6b1a786]

Also known as: Monster, Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

45mm

Case Thickness

15.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Burgundy

Jewels

32j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1966

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