Seiko Cal. 5227 - 737

Released in 1972, the Cal. 5227 with design code 737 was part of Seiko's domestic market collection. It features a Green dial protected by a Mineral crystal and offers 200m of water resistance. [seikata-wm-a88f39cd23ad]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

43mm

Case Thickness

11.8mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Green

Jewels

32j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1972

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